- One Size - $21.99
Harley Quinn Inflatable Mallet - DC Superhero Costume Prop
DELIVERY
- Dispatch: Within 24 Hours
- Registered & Express Post for ALL Orders.
- Pick up is available.
- Easy 14 days returns and exchanges
RETURNS
If you do not like the product you can return it within 14 days - no questions asked. This excludes stockings, gloves, swimwear and clearance sale items. We have an easy and hassle-free return policy. Please look at our Delivery & Returns section for further information.
PRODUCT DETAILS
What's in the Box
- Inflatable mallet with printed red and black trademark diamonds
This Harley Quinn Inflatable Mallet brings the DC Comics villain's signature weapon to your costume without the weight. Bold red and black stripes with Harley's diamond print wrap the oversized mallet head, and the glossy vinyl finish catches the light at every photo op.
Lightweight enough for kids to carry all day, sturdy enough for adult cosplay. The two-valve design (one in the handle, one in the mallet head) means you can deflate it for transport and blow it back up at the venue. Smooth seams, no sharp edges — this is built for costume play, not actual impact.
Perfect For
Comic Conventions & Cosplay Events: The go-to prop for Harley Quinn cosplay — pairs with jester outfits, Suicide Squad looks, or Birds of Prey styling. Instantly recognisable to DC Comics fans.
Halloween & Costume Parties: Completes any Harley Quinn costume without adding bulk to your bag. Inflates in seconds, photographs brilliantly under party lights.
Superhero Dress-Up Days: Safe alternative to solid props for school dress-up days, themed birthday parties, or backyard superhero battles. No risk of actual bonking.
How to Wear It
Blow up both chambers (mallet head and handle) until firm but not rock-hard — overinflation stresses the seams. Pair with red and black Harley Quinn costume, pigtails wig, and face paint for full villain energy. Carry it slung over your shoulder or grip the handle for posed photos.
Parent FAQs
Q: How do you inflate this? Does it need a pump?
A: Most people blow it up by mouth using the two plastic valves (one in the handle base, one in the mallet head). A balloon pump works if you have one, but lung power is usually enough.
Q: Will it stay inflated all day at a convention or party?
A: Yes — the valves seal well. You might need to top it up once if it's a long event, but it holds air reliably for hours.
Q: Is this suitable for younger kids, or just older fans?
A: It's light enough for primary-school-age kids to carry comfortably, and the inflatable construction means no sharp edges or weight concerns. Great for all ages.
Q: Can you deflate it after the event for storage?
A: Absolutely — that's the advantage of the two-valve system. Deflate both chambers, roll it up, and tuck it in your costume bin until next time.
Care: Wipe clean with a damp cloth. Store deflated in a cool, dry spot away from sharp objects.
SHIPPING & RETURNS
Returns Policy
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@kidsbookweekcostumes.com.au.
If your return is accepted, we’ll send you a return form, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Shipping
We offer Flat Rates $9.8 for Registered Post or $14.8 for Express Post within Australia.



