21st birthday key
21st birthday key for sale on Ireland's largest auction and classifieds sites
Boxed silver 18th 21st - 18th, - £6.49
Lined box key • Choose from can • Have order faster - Free postage - New and Used
Lined box key • Choose from can • Have order faster - Free postage - New and Used
16th 18th 21st - 16th,, 18th, - £4.75
Beautiful rhinestone butterfly • Keyring gift silver • Charm pink heart - Free postage - New and Used
Beautiful rhinestone butterfly • Keyring gift silver • Charm pink heart - Free postage - New and Used
Gift boxed silver 18th 21st - silver, - £8.99
Lined box key • Ribbon bow • Pink - Free postage - New and Used
Lined box key • Ribbon bow • Pink - Free postage - New and Used
21st birthday gift necklace - 21st, - £4.79
Beautiful silver plated • Necklace crystal key • Charm - Free postage - New and Used
Beautiful silver plated • Necklace crystal key • Charm - Free postage - New and Used
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Boxed silver 21st birthday - silver, key - £7.49
Crafted stunning silver • Plastic this elegant • Key symbolizes new - Free postage - New and Used
Crafted stunning silver • Plastic this elegant • Key symbolizes new - Free postage - New and Used
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48 listings · from £3.29 · avg £8.28
⚠️ These listings were last updated more than 107 days ago.
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Browse 48 21st birthday key listings currently in our index. Prices range from £3.29 to £37.1, with an average of £8.28. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about 21st birthday key →
Boxed silver 21st birthday - 21st, key - £7.49
Crafted stunning silver • Plastic this elegant • Key symbolizes new - Free postage - New and Used
Crafted stunning silver • Plastic this elegant • Key symbolizes new - Free postage - New and Used
Girls 18th 21st birthday gift - girls, - £16.00
Gold silver coloured • Key door personalised • Pendant tray - Free postage - New and Used
Gold silver coloured • Key door personalised • Pendant tray - Free postage - New and Used
21st birthday gift - gift, keyring - £3.29
- Free postage - New and Used
- Free postage - New and Used
21st birthday key keyring gift - 21st, - £4.79
This keyring made • Stunning piece that • Can used handbag - Free postage - New and Used
This keyring made • Stunning piece that • Can used handbag - Free postage - New and Used
21st birthday gift - birthday, keyring - £3.39
- Free postage - New and Used
- Free postage - New and Used
Personalised 21st birthday - 21st, - £9.99
Mobile description summary • Goes here - Free postage - New and Used
Mobile description summary • Goes here - Free postage - New and Used
Birthday key 21 - key, - £6.99
May also have • Split over lines • Engraving will just - Free postage - New and Used
May also have • Split over lines • Engraving will just - Free postage - New and Used
Age number keyring 21st - age, - £3.99
Age number keyring • Illustrated - Free postage - New and Used
Age number keyring • Illustrated - Free postage - New and Used
Personalised birthday gift - birthday, - £8.99
Personalised key made • From 4mm beech • Veneer - Free postage - New and Used
Personalised key made • From 4mm beech • Veneer - Free postage - New and Used
21st birthday gift set mug - £15.08
Never been opened • Used necklace box • Has mark front - Free postage - New and Used
Never been opened • Used necklace box • Has mark front - Free postage - New and Used
16th 18th 21st birthday - 16th, - £3.95
Sixpence will random • Year beautiful key • Keyring gift birthstone - Free postage - New and Used
Sixpence will random • Year beautiful key • Keyring gift birthstone - Free postage - New and Used
21st birthday gift key ring - gift, - £4.95
Keyring year old • Made from quality • Beech wood key - Free postage - New and Used
Keyring year old • Made from quality • Beech wood key - Free postage - New and Used
White wooden heart - wooden, cut - £3.29
Being white colour • This key suitable • Give male female - Free postage - New and Used
Being white colour • This key suitable • Give male female - Free postage - New and Used
21st birthday key keyring - key, - £4.79
This keyring made • Stunning piece that • Can used handbag - Free postage - New and Used
This keyring made • Stunning piece that • Can used handbag - Free postage - New and Used
Personalised luxury 21st - personalised, - £17.95
This luxury 21st • Looks stunning when • Engraved supplied gift - Free postage - New and Used
This luxury 21st • Looks stunning when • Engraved supplied gift - Free postage - New and Used
18th 21st birthday lucky - 18th, - £6.99
You will receive • Item charms follows - Free postage - New and Used
You will receive • Item charms follows - Free postage - New and Used
Girls 18th 21st birthday gift - 18th, - £15.00
Silver gold coloured • Key door personalised • Pendant tray - Free postage - New and Used
Silver gold coloured • Key door personalised • Pendant tray - Free postage - New and Used
21st birthday gift for - 21st, - £3.49
- Free postage - New and Used
- Free postage - New and Used
Personalised celebration - personalised, - £19.99
Personalised glassware key • Has pink decorative • Crystal finish butterfly - Free postage - New and Used
Personalised glassware key • Has pink decorative • Crystal finish butterfly - Free postage - New and Used
21st birthday key the - 21st, - £9.99
Fob key there • Stunning blue decorative • Tassle hanging then - Free postage - New and Used
Fob key there • Stunning blue decorative • Tassle hanging then - Free postage - New and Used
16th 18th 21st birthday - 18th,, - £4.75
Beautiful dragonfly sixpence • Keyring gift random • Silver plated rhinestone - Free postage - New and Used
Beautiful dragonfly sixpence • Keyring gift random • Silver plated rhinestone - Free postage - New and Used
Silver 21st birthday - 21st, - £9.99
Silver 21st birthday • Key keepsake lilac • Purple girl - Free postage - New and Used
Silver 21st birthday • Key keepsake lilac • Purple girl - Free postage - New and Used
White wooden heart cut key - cut, - £3.29
Being white colour • This key suitable • Give male female - Free postage - New and Used
Being white colour • This key suitable • Give male female - Free postage - New and Used
30th 40th 50th birthday - 30th,, - £4.95
Beautiful rhinestone key • Keyring gift silver • Heart charm pink - Free postage - New and Used
Beautiful rhinestone key • Keyring gift silver • Heart charm pink - Free postage - New and Used
60th 70th 80th - 60th,, 70th, - £4.75
Beautiful keyring gift • Birthstone charm silver • Plated rhinestone key - Free postage - New and Used
Beautiful keyring gift • Birthstone charm silver • Plated rhinestone key - Free postage - New and Used
16th 18th 21st birthday lucky - 21st, - £5.75
Beautiful lucky sixpence • Keyring gift random • Silver plated rhinestone - Free postage - New and Used
Beautiful lucky sixpence • Keyring gift random • Silver plated rhinestone - Free postage - New and Used
21st birthday keepsake gift - 21st, - £8.65
Celebrate special 21st • Birthday this vibrant • Fun keepsake gift - Free postage - New and Used
Celebrate special 21st • Birthday this vibrant • Fun keepsake gift - Free postage - New and Used
21st birthday gift - 21st, - £4.49
These are not • Real door keys • Open any doors - Free postage - New and Used
These are not • Real door keys • Open any doors - Free postage - New and Used
Silver birthday key keepsake - birthday, - £14.39
Can have order • Faster gifts kids • Him - Free postage - New and Used
Can have order • Faster gifts kids • Him - Free postage - New and Used
18th 21st key - key, gift - £6.99
You will receive • Item charms follows - Free postage - New and Used
You will receive • Item charms follows - Free postage - New and Used
Personalised wooden birthday - personalised, - £12.93
- Free postage - New and Used
- Free postage - New and Used
Birthday key silver - key, plated - £11.99
Silver plated key • Cut out number • Teeth design choose - Free postage - New and Used
Silver plated key • Cut out number • Teeth design choose - Free postage - New and Used
Happy 21st birthday keyring - happy, - £5.23
Happy 21st birthday • Keyring key chain • Gift present adult - Free postage - New and Used
Happy 21st birthday • Keyring key chain • Gift present adult - Free postage - New and Used
Mayflower collection 21st - collection, - £37.10
Mayflower collection 21st • Birthday glass key • Moments keepsake gift - Free postage - New and Used
Mayflower collection 21st • Birthday glass key • Moments keepsake gift - Free postage - New and Used
Graduation gift keyring 18th - keyring, - £4.99
Christmas card gift • Amazing gifts grandson • Granddaughter best friends - Free postage - New and Used
Christmas card gift • Amazing gifts grandson • Granddaughter best friends - Free postage - New and Used
Century house gold 21st - house, - £4.37
- Free postage - New and Used
- Free postage - New and Used
18th 21st birthday gift ideas - 21st, - £7.95
Handmade sturdy keyring • Hand stamped charm • Rganza gift bag - Free postage - New and Used
Handmade sturdy keyring • Hand stamped charm • Rganza gift bag - Free postage - New and Used
18th 21st birthday celebration - 21st, - £5.75
Handbag charm silver • Key number pearl • Plated - Free postage - New and Used
Handbag charm silver • Key number pearl • Plated - Free postage - New and Used
Personalised grandson 21st - personalised, - £3.59
Also available son • Cousin godson nephew • Uncle grandson friend - Free postage - New and Used
Also available son • Cousin godson nephew • Uncle grandson friend - Free postage - New and Used
21st birthday key keepsake - 21st, - £4.38
Never opened used • Kept ins storage • Therefore box slight - Free postage - New and Used
Never opened used • Kept ins storage • Therefore box slight - Free postage - New and Used
You tatty teddy - you, - £10.80
You tatty teddy • 21st birthday gift • Set champagne flute - Free postage - New and Used
You tatty teddy • 21st birthday gift • Set champagne flute - Free postage - New and Used
21st birthday key ring - birthday, by - £9.72
Boxed fabric lining • 21st novelty key • Ring - Free postage - New and Used
Boxed fabric lining • 21st novelty key • Ring - Free postage - New and Used
Birthday gift ideas - ideas, her - £7.95
Handmade sturdy keyring • Hand stamped charm • Rganza gift bag - Free postage - New and Used
Handmade sturdy keyring • Hand stamped charm • Rganza gift bag - Free postage - New and Used
Try this: duck scarf | christmas swag garland | chocolate bar wrappers | christmas foil garlands | decorative twigs lights | bottle brush tree | rubber snake | dog christmas tree decorations | father christmas ornament | rabbit balloons
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Everything you need to know about 21st birthday key
Whether you are looking for a brand-new or second-hand 21st birthday key, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.29, while premium listings can reach £37.1 — giving you a wide budget spread to work with. The average price of £8.28 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.