What's in the Box

White printed top with Billionaire Boy character illustrations and money motifs
Blue printed trousers with character graphics and underwater skateboard scenes
Novelty toilet roll prop with working sound chip

This Kids Billionaire Boy Costume brings David Walliams' bestselling character to life for Book Week, complete with illustrated top, printed trousers, and the famous BumFresh toilet roll prop (with sound effects, no less). Joe Spud's adventures make for brilliant character parade material — and kids love the interactive toilet roll.

The white top features scattered money graphics and umbrella-holding character illustrations straight from the book's pages, while the blue trousers carry coordinating underwater and skateboard scenes down the legs. Text reading "BILLIONAIRE BOY" appears along one side. Both pieces use lightweight printed polyester that's comfortable for all-day wear at school. The toilet roll prop has an integrated sound chip — press it for effects that'll make classmates laugh.

Perfect For

Book Week & World Book Day: One of David Walliams' most popular titles, recognised by teachers and librarians across Australian schools. Pairs beautifully with book-character parades and literature day dress-up competitions.

Character Dress-Up Days: The novelty toilet roll prop makes it unmistakable — this isn't just any kid in a white top, it's Joe Spud the Billionaire Boy. Great for school assemblies, class photo days, or kindy storybook celebrations.

Themed Birthday Parties: Perfect for David Walliams fans or any book-themed birthday. The costume works equally well for casual play-acting at home — kids enjoy pressing the sound chip toilet roll repeatedly (fair warning to parents).

How to Wear It

Pair with white sneakers and tousled hair for that classic billionaire-kid-next-door vibe. Keep accessories simple — the printed graphics and toilet roll prop do all the storytelling work. If your child wants to carry something, a small backpack works (Joe Spud's a school kid, after all).

Parent FAQs

What size should I order?

Check the size chart against your child's chest and height measurements. The top's a relaxed crew-neck cut and the trousers have an elastic waistband, so there's some give. If your child is between sizes, we'd recommend sizing up — Walliams fans tend to wear these costumes repeatedly.

Does the toilet roll sound chip need batteries?

Yes, the prop comes with batteries pre-installed (button cell type, replaceable). It's designed for light play rather than constant use — if your child presses it 100 times on Book Week morning, expect to swap batteries eventually.

Can they wear this over regular clothes, or is it a standalone outfit?

It's a standalone two-piece costume — the top and trousers are the costume. No need for layers underneath unless the classroom's cold (a plain white long-sleeve tee works under the top if needed).

Will other kids recognise the character?

David Walliams is massively popular in Australian primary schools, and Billionaire Boy is one of his best-known titles. Teachers will definitely recognise it, and kids who've read the book will spot the BumFresh toilet roll instantly. Even kids unfamiliar with the story tend to find the toilet paper prop hilarious.

Care: Hand wash costume pieces in cold water, air dry flat. Remove batteries from sound chip before washing toilet roll prop.

Kids Billionaire Boy Costume - David Walliams Book Week Outfit