
Nailong Costume
Bring the adorable, chubby yellow milk dragon to life.
Nailong, the lovable chubby yellow milk dragon, has captured hearts worldwide with his cute, squishy design and clumsy antics. Dressing up as this viral character is a fantastic choice for anyone looking to spread joy and humor at a convention or Halloween party. The signature look relies on a bright yellow, round body, a friendly cartoon face, and tiny wings.
- Difficulty
- Easy
- Time
- ~15 min
- Budget
- $30–110
Try it on
See yourself as Nailong
One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.
One render, $1. No account needed — if it fails you're not charged. Pricing.
Your photo is sent to Google's Gemini API to make the render and isn't used for training. Renders are AI-generated and labelled.
Want a different costume on this photo, or a whole group in costume? Open the Try-On Studio.

What you need for a Nailong costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Nailong costume — one box instead of 4 pieces.
Inflatable Nailong Suit
A full-body, blow-up bright yellow dragon costume with a white belly, tiny orange horns, and a cheerful face.
Plush Yellow Dragon Onesie
A cozy, soft fleece yellow jumpsuit with a hood featuring Nailong's face and small horns as a comfortable alternative.
DIY: Use a plain yellow hooded sweatshirt and sweatpants, then fabric-glue white felt to the chest and orange felt triangles to the hood.
Portable Fan and Battery Pack
The essential small electric blower fan that keeps the inflatable suit fully expanded.
Yellow Face Paint
Bright yellow water-based face paint to blend your face in if using an open-face hood version.
Rather not assemble it? See ready-made Nailong costumes at Spirit Halloween ↗
How to put it together
- 1
Step into your chosen base, either the plush yellow onesie or the deflated inflatable suit.
- 2
If using the inflatable version, clip the battery pack securely to your waistband or pocket inside the suit.
- 3
Ensure the fan is properly connected to the battery pack and turned on to begin inflating.
- 4
Carefully pull the elastic bands over your wrists and ankles to seal the air inside the suit.
- 5
Zip up the back fully, making sure the neck opening fits snugly but comfortably.
- 6
Adjust the headpiece so that the clear viewing window or face hole aligns perfectly with your eyes.
Makeup & hair
If your face is exposed, apply bright yellow face paint across your cheeks and forehead, adding a dab of pink blush to recreate Nailong's cute, rosy-cheeked expression. Keep your hair tied back or tucked under a yellow wig cap.
Nailong for couples, groups, kids & more
- couples
- Pair up with a friend dressed as a giant carton of milk or another viral animated character.
- group
- Have a group wear different variations, such as the classic yellow dragon, the bee-themed Nailong costume, and a plush dinosaur.
- kids
- A cozy, zip-up plush yellow dragon onesie is perfect for keeping kids warm and comfortable while trick-or-treating.
- Plus size
- The inflatable suit is naturally oversized and highly accommodating for all body types.
- pet
- Dress your dog in a small yellow dinosaur hoodie with soft orange spikes.
Tips
- Always carry a spare set of AA batteries for the inflatable fan to ensure your costume stays fully blown up all night.
- Inflatable suits can get warm inside; wear lightweight, moisture-wicking clothes underneath to stay cool.
- Practice walking and navigating doorways beforehand, as the chubby, rounded shape of the suit temporarily alters your spatial awareness.
Nailong costume FAQ
- What is Nailong?
- Nailong (also known as the Milk Dragon) is a popular animated yellow dragon character known for his chubby body, cute expressions, and viral social media videos.
- How does the inflatable Nailong costume stay blown up?
- It uses a small, battery-operated fan that clips inside the suit to continuously pump in air, keeping the character's round shape intact.
- Can I sit down while wearing the inflatable version?
- Yes, but you must sit carefully to avoid blocking the fan intake or putting too much pressure on the seams, which can cause air to escape.
Did you know? Nailong, whose name translates to 'Milk Dragon,' became a massive viral sensation due to his squishy, huggable design and clumsy, endearing personality.