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22 Fun 21st Birthday Party Decorations to Celebrate Finally Turning 21

Turning 21 is a cause for celebration, and naturally you’ll want to do it in style. Whether the party is being held in a hall or a house, a boat or a barn, these fun 21st birthday party decorations – which include balloons, banners, buntings, and backdrops – will add sass, style, and a real sense of occasion as she finally becomes an adult.

21st Birthday Party Decorations

Personalized 21st Birthday Cocktail Banner

A 21st birthday is all about the bubbles, so carry the theme on with this pretty wall banner which features champagne bottles and glasses and can be personalized with their first name, too.


Hello 21 Rose Gold Birthday Baloons

When you’re 21 the world is your oyster, so encourage them to look forward to this next stage in their life with excitement as they say ‘hello 21’ with these fabulous balloons.


Happy Birthday Face Confetti

Add a hilarious twist to 21st birthday decorations by strewing the venue with hundreds of pieces of confetti which all feature the birthday boy or girl’s smiling face – they’ll be horrified!


21st Birthday Balloon

A party’s not a party without some balloons, and this pair of gigantic numbers – in gold, rose gold, or silver – are a stylish way to add 21 to any birthday celebration.


Sip Sip Hooray 21st Birthday Cups

Available in multiples of six or twelve, these ‘sip sip hooray’ disposable cups come decorated with a birthday greeting in a choice of colors, and include shiny gold straws and close-fitting lids.


Tall Ombre Candles

These stunning tall ombre candles will make a beautiful addition to their birthday cake, because if they have to blow out 21 of them, they might as well be gorgeous!


Poppin Bottles Photo Frame

Photos are much more fun when they’re accompanied by props, and these glittery ones can be customized to include any message or phrase you like, and come in a variety of colors.


21st Birthday Custom Candles

She may well never want to light this personalized 21st birthday candle as it’s so gorgeous, although the choice of delicious scents (including birthday cake), just might prove to be irresistible.


She’s 21 Bitches Banner

Leave the guests in absolutely no doubt as to how old the birthday girl is with this in your face banner which is sassy, saucy, and will look great in the photos.


Rainbow Garland

Available in lengths of up to 15 feet, this delightful garland will adorn any venue with a rainbow of felt pom poms, or you can choose your colors to match the party theme.


Have a Dope Birthday Straws

Lovers of the leaf will really have a laugh when they see these dope straws which are graced with a glittery Mary Jane leaf – there are even other accessories available to match.


Rose Gold 21st Birthday Party Decoration Pack

Kit out the venue with a complete set of rose gold themed 21st birthday decorations, which includes a 21 balloon, wine bottle and glass, bunting, fringe curtain, and lots more besides.


21st Birthday Cupcake Toppers

If they’re having cupcakes rather than one big birthday cake (or maybe they’re having both?), these sparkly 21 toppers will make a beautiful addition, and come with bows to finish them off.


YAY 21 Baloons

Their excitement about their latest birthday will be captured in this fun silver or gold foil balloon, which reads ‘yay 21’ and includes an optional pair of luscious red lips.


Rose Gold Glitter 21 Table Decoration

A stunning centerpiece for any 21st birthday party, this 20 x 20 x 3cm number 21 will sparkle and shine under the lights, as it’s covered in beautiful rose gold glitter.


Rose Gold Mason Jars

These absolutely beautiful mason jar centerpieces can be ordered with or without lid bands, and would make delightful vases to place around the party venue, or filled with candy as party favors.

Prices vary

Champagne Balloon

At 21 she’s legally old enough to drink, but even if she doesn’t want to she doesn’t have to miss out as this ginormous balloon is shaped just like a bottle of champagne.


Legal AF Glitter Banner

This banner might be simple but it sure does make a statement! Available in more than two dozen glitter colors, this wall hanging simply reads ‘legal AF’.


Finally 21 Ribbon

Forget subtle, if she wants the world to know it’s her 21st birthday she needs this fabulous and definitely not understated pin which can also be personalized with whatever message you like.


Classy AF Straws

They say the devil is in the detail, and while straws might be a minor part of 21st birthday decorations, these ‘classy AF’ straws are adorably naughty and the perfect finishing touch.


Pink and Gold Bunting Happy Birthday Banner

Beautiful and big without being ‘in your face’ this pink and gold ‘happy birthday’ bunting will make a superb backdrop for any 21st birthday celebrations, and measures a generous 2.5 meters long.


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