Top 20 21st Birthday Decoration Ideas

What’s a grand 21st without some fabulous decorations to compliment. No matter your budget, you will find some trendy inspiration with these top 5 decoration ideas.

Your 21st birthday is a milestone event that deserves to be celebrated in style. Turning 21 is a rite of passage that marks your transition to adulthood, and it’s a perfect excuse to throw a party with your closest friends and family. Whether you’re planning a small gathering or a big bash, the decorations are crucial to creating the right ambiance. In this article, we’ll share the top 5 21st birthday decoration ideas that will make your celebration unforgettable.

These 21st birthday decoration ideas will transform your room, creating a space you will want to party in until all hours of the night.

1. DIY Pressed Flower Place Settings

Need a way to let your guests know where they are sitting at your 21st birthday? These adorable place settings are the perfect, practical decoration addition to your table settings. These place cards are a fun, low-cost DIY project to keep you busy on those anticipation filled days leading up to your birthday celebration.

Find the steps to this DIY project here.

2. Hire a 21 Neon Sign For Your Birthday Party

A neon sign is the perfect backdrop for all your fabulous 21st pictures. With the ability to change the colour, the sign will fit in with any theme or colour scheme you have for your birthday celebration.

Buy this sign on Etsy

3. Hanging Wall Feature Decoration

Add a bit of colour to your birthday space with hanging wall decorations. Change up the shape and colour to suit your liking and your 21st party theme.

4.Glitter Champagne Glass Decorations

These glasses can add so much glitz and glam to the tables at your 21st birthday party. This accessory idea is also great for those on a bit of a budge as you can DIY this 21st decoration idea. Simply purchase the glasses, some glue and glitter of your choice. Combine and you will have created super elegant (and practical!) decoration pieces for your 21st birthday party.

Source: HGTV

5. Fun Floral Numbers

Freshen up your 21st party location with a unique 21 floral stand. This 21st decoration piece is another perfect backdrop for those forever lasting 21st birthday photos. This stand would match perfectly with a floral themed party. See our 21st Birthday Invitation Ideas for the perfect invitation to match with this stand.

Hire this specific stand from Melbourne Event Florals

122X Coffee Balloon Arch Garland Kit Set

6. Balloon Garland

A balloon garland is a trendy and eye-catching decoration that will add a touch of elegance to your 21st birthday party. A garland can be customised to fit your theme, and it can be made in any colour or size. It’s easy to make a balloon garland with a kit, or you can hire a professional to do it for you. It’s important to keep in mind that you may also need an electric balloon pump if you’re going to assemble this by yourself. Balloon garlands can be used as a backdrop for a photo booth or a dessert table, or they can be hung from the ceiling for a whimsical effect.

7. Personalised Signage

Personalised signage is a great way to add a personal touch to your 21st birthday party. You can create a custom sign with your name or a special message using materials like wood, acrylic, or foam board. The sign can be used as a backdrop for a photo booth, or it can be placed on a table as a centrepiece. You can also create a welcome sign to greet your guests as they arrive.

Birthday Photobooth Template Birthday Photobooth Template - Etsy Australia

8. Photo Booth

A photo booth is a fun and interactive way to capture memories from your 21st birthday party. You can create a DIY photo booth with a backdrop, props, and a camera, or you can hire a professional photo booth rental company. Props can include things like hats, sunglasses, and signs with funny messages. Your guests will love posing for photos and creating memories that will last a lifetime.

9. DIY Flower Arrangements

Flowers are a classic decoration that can add a touch of elegance to any party. Instead of buying pre-made flower arrangements, you can create your own DIY arrangements using flowers from a local florist or grocery store. You can choose flowers that match your colour scheme or go for a mix of different colours and textures. DIY flower arrangements can be used as centrepieces or placed around the party space to create a cohesive look.

LED Alphabet Letter Lights

10. Light-Up Marquee Letters

Light-up marquee letters are a popular decoration that can add a touch of glamour to your 21st birthday party. You can spell out your name, age, or a special message using letters that are illuminated with LED alphabet letter lights. Marquee letters can be rented or purchased, and they can be used as a backdrop or placed on a table as a centrepiece. Your guests will love taking photos with the light-up letters and creating memories that will last a lifetime.

In conclusion, your 21st birthday is a special occasion that deserves to be celebrated in style. With these top 5 decoration ideas, you can create a memorable party that your guests will never forget. Whether you choose a balloon garland, personalised signage, a photo booth, DIY flower arrangements, or light-up marquee letters, you can’t go wrong with these trendy and fun decorations.

Super Hero Fancy Dress Inflatable Suit - Fan Operated Costume

11. Themed Costume Party

A themed costume party can add an exciting twist to your 21st birthday bash. Choose a theme that reflects your interests, like a favourite movie, era, or location, and ask your guests to come dressed accordingly. You can then decorate your party space to match the theme, creating an immersive experience that your mates will love.

12. Tinnie Bar

Set up a tinnie bar stocked with your favourite Aussie beers and ciders. You can customise the bar with signs, fairy lights, and themed decorations to make it a standout feature at your 21st birthday party. Don’t forget to keep the esky stocked with ice to keep your drinks cold on a scorching Aussie day.

13. Fairy Light Canopy

Create a magical atmosphere at your 21st birthday party with a canopy of fairy lights. String up the lights across the ceiling or outdoor area, and watch as they cast a warm glow over your celebration. Fairy lights are perfect for setting a cosy and intimate mood, and they look stunning in photos.

Pavlova recipe

14. DIY Pavlova Station

Put a sweet Aussie spin on your 21st birthday by setting up a DIY pavlova station. Provide guests with a selection of pavlova bases, whipped cream, and a variety of toppings, such as fresh fruit, chocolate shavings, and crushed nuts. Your guests will have a blast customising their own delicious pav, and it’s a unique alternative to a traditional birthday cake.

15. Aussie BBQ

Nothing says Australian party like a good old-fashioned BBQ. Fire up the barbie and serve up a feast of snags, burgers, and veggie skewers, along with some classic Aussie sides like potato salad and coleslaw. Decorate your outdoor area with Australian flags, banners, and other patriotic decorations to make your 21st birthday a true-blue celebration.

16. Surfboard Display

If you’re a beach-loving Aussie, incorporate surfboards into your 21st birthday decorations. You can use old or new surfboards as a backdrop for a photo booth or lean them against the walls for a laid-back, beachy vibe. You can even paint or stencil custom messages onto the surfboards for a personal touch.

17. Giant Lawn Games

Keep your guests entertained with some giant lawn games like Jenga, Connect Four, or a game of backyard cricket. These games are perfect for breaking the ice and getting everyone mingling at your 21st birthday party. Set up the games in an outdoor area and provide seating and shade for guests to relax and enjoy the fun.

18. Vegemite Jar Centrepieces

Embrace your inner Aussie with Vegemite jar centrepieces. Clean and repurpose empty Vegemite jars as vases for native Australian flowers like wattle, eucalyptus, or banksia. These unique centrepieces will add a touch of Australiana to your party and serve as great conversation starters.

19. Lamington Tower

Instead of a traditional birthday cake, create a stunning lamington tower for your 21st birthday party. Stack up delicious lamingtons in a pyramid shape and decorate with fresh berries or edible flowers. Not only will this make for an impressive centrepiece, but it also offers a taste of a true Aussie classic.

20. Bush Tucker Grazing Table

Celebrate your 21st birthday with a taste of Australia by setting up a bush tucker grazing table. Fill your table with a selection of native Australian ingredients, such as kangaroo or emu sausages, damper, macadamia nuts, and finger limes. Your guests will love the opportunity to sample some unique Aussie flavours while they celebrate your milestone birthday.


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