World Book Day is just around the corner on March 6, and if you’re a parent who’s yet to sort out a costume for your little one, don’t panic. TU has got you covered with some fantastic last-minute options – all at 30% off. With beloved characters like Harry Potter, Willy Wonka and Mary Poppins available on the TU website, you can nab a costume your child will adore without splashing too much cash. The 30% off deal lasts until 23:59 on March 2, so there’s still time to grab a World Book Day outfit in time for the big day. READ MORE: Amazon slashes price of LEGO Marvel sets to as low as £13 – but you’ll need to be quick READ MORE: Ninja’s Foodi Air Fryer lets you upgrade your kitchen for under £150 There are World Book Day costumes suitable for children of all ages, from toddlers and babies to kids aged 11-12 years old. Plus, there’s a wide variety of styles, from full outfits complete with accessories to simple pyjama sets perfect for younger children or those with sensory issues.

The Mary Poppins costume comes with accessories like a hat and bag
(Image: TU)

One standout is the Mary Poppins Fancy Dress Costume, which is sure to be popular thanks to the current Broadway stage performance tour. Usually priced between £15 and £17 depending on size, it’s now available for £10.50 – £11.90 thanks to the 30% discount. The costume includes a dress, an alice-band hat, and a carpet bag, and fastens with a simple one-touch fastening. It’s available in sizes from 3-4 years up to 9-10 years. If your little one is a fan of Charlie and the Chocolate Factory, then the Willy Wonka costume is a sure-fire hit. Priced between £10.50 and £11.90, the set includes a long sleeve top, trousers and a matching top hat.

The Willy Wonka set features a hat, trousers and jacket
(Image: TU)

For Harry Potter enthusiasts, TU has a Harry Potter costume set for ages 3 to 12 years, priced at £14-£16.80, down from its usual price range of £20 to £24. You can shop the full range of TU World Book Day costumes here, with the 30% offer ending at 23:59 on March 2. And it’s not just Tu offering fab costume ideas; Amazon also has a plethora of options, many available with next day delivery for Prime subscribers – perfect if you’ve left it until the last minute! Options include everything from Dorothy from The Wizard of Oz to a deluxe Paddington Bear costume, reports the Mirror.

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Last Update: March 20, 2025