Onesie Dress-Up Ideas for Events in Sydney

They combine comfort, creativity, and fun in a way that keeps children relaxed and excited throughout the event. The First Floor Function Room at Kingsleys Australian Steakhouse in Sydney is the perfect venue for a memorable birthday celebration. Upon arrival, guests get to enjoy a private area for drinks, setting the tone for your special day.
Whether you’re planning a milestone birthday, a swanky corporate dinner, or a just-because celebration, Eastside delivers that perfect mix of grit and glamour. It’s Sydney meets NYC—with a whole lot of flavour and just the right amount of swagger. Venues with harbour views, Pacific Ocean views, world class tiger onesie catering, urban, chic, historic and unique.

There's nothing more fun than dressing up your little ones on special occasions! Our collection of custom baby onesies has designs for every celebration, from Father's Day and Mother's Day to Christmas and birthdays. Roar your way into comfort with our KCM Onesie Green Dinosaur! Made from high-quality, soft, and breathable material, this onesie is perfect for lounging at home, attending parties, or even as a costume.
Pair the costumes with animal-themed decorations, jungle music, and fun games like “Guess the Animal” to keep the theme alive. Jacques event and party hire, located at Marrickville, was established in 1989 and has a long-standing reputation for providing excellent services and quality function equipment. Jacques is the closest party hire company to Sydney CBD and is very central to all Metropolitan Suburbs. Sydney Party Shop has been serving the people of Sydney for the past 20 years with discounted party goods catering supplies and party food to suit all ages and all occasions. Their mission is to offer our customers a great selection of party products at the best prices in Australia.
Our chocolate fountains are a stunning centrepiece to any party in Sydney. Your guests' mouths will be watering when they see delicious layers of Belgian chocolate flowing down the fountain tiers. Our packages include marshmallows, napkins and skewers, and we can also provide dipping foods such as strawberries, wafers and much more.

Plan engaging activities, such as costume contests, and prepare finger foods and themed drinks to enhance the festive spirit. Ever thought about throwing a party where everyone shows up in cozy onesies? It might sound silly, but onesie parties are the perfect blend of fun and comfort for adults looking to unwind. Whether it’s a birthday bash or just a casual get-together, these themed parties create a relaxed atmosphere that encourages laughter and connection.
Determined to follow his passion, Nick saved money from his night shifts at Franklins Supermarket andsecretly bought DJ equipment, hiding it in his room.  Late at night, he practiced using headphones while his parentsslept, and before long, he was DJing at friends' parties. With our superior delivery service and printing speed, we may even be able to have your garment to your door by the next working day.

For personalised clothing, we will ensure every name is scaled to fit perfectly on each design to suit your exact requirements. If you'd prefer to not have a child's name on your order, simply enter some spaces in the name section and our production team will print your order without personalisation. These baby onesies are made of super soft yet durable quality polyester. You'll love that you can throw them in the washing machine and clothes dryer and the print will stay vibrant for a long time. Choosing your size based on your height is the best way to find the perfect fit.
A onesie party is a fun, themed gathering where adults wear cozy onesies for relaxation and socializing. These parties promote a laid-back atmosphere, allowing guests to enjoy each other’s company while engaging in activities, games, and delicious snacks. Onesie parties for adults are all about fun relaxation and connection.

Sydney boasts a number of venues with harbour views, garden courtyards, and rooftop settings. Whether you’re dreaming of a sunset party overlooking Circular Quay or a laid-back courtyard vibe in Surry Hills, there are options that make the most of the city’s scenery. Sydney’s party scene caters to all kinds of celebrations — big or small, stylish or relaxed — with venues to match every mood and occasion. Think trendy rooftop bars, inner-city lounges, heritage buildings and waterfront terraces, you are spoilt for choice. From the buzzing nightlife of the CBD and Darlinghurst to waterside spots in Balmain or beachy vibes in Bondi, Sydney offers diverse party zones to suit any vibe.
The Glass House at Le Montage is an elegant and modern space with floor-to-ceiling glass windows, allowing this venue to be bathed in natural light. Enjoy the picturesque waterfront views at a modern setting, perfect for any type of birthday party. Spend quality time with friends and family in this backdrop, away from the busy city life and let the time pass by. Be ensured of an unforgettable birthday party at the Glass House with space for up to 120 guests. Host a birthday party in style at Brasserie Dining Room, a venue space complementing the golden 30s’ with contemporary sophistication. The sitting booths add a unique and cozy touch to your celebration and create a warm atmosphere.
Make it fun by keeping a trophy for the winning team and celebrating their victory with themed drinks or snacks. Transform your gathering into a whimsical jungle with an animal onesie theme. Encourage guests to wear onesies that represent their favorite animals. Offer themed cocktails or mocktails, like “zebra stripes” or “tiger tail.” Incorporate fun activities, such as an animal-themed trivia game or a dance-off to animal songs.

If you would rather do your own thing, we have speakers available for hire, PA Systems, mixers and much more. We also have a DIY package should you want to play your music from your phone, tablet, or laptop. You can then use the conversion size chart below to find the best fit based on your measurements. Onesie sellers are reporting sales increases as winter goes on.
We also have a great range of accessories including capes, wigs, hats and masks. Check out our range of accessories to complement your costume or to create your own unique dress up outfit. It's important to have chairs for every person at a seated event, and chairs for at least 70% of the guests at a more casual, cocktail-style event.