Make An Impact The right accessory makes all the difference when trying to pull off the perfect costume. If you are a fan of Harley Quinn, with all her looks and her love of improvised weapons then you are going to love this mallet. It’s a near-perfect replica and is styled with Harley Quinn’s classic graphics. It looks like it just jumped off the page of a DC super villain’s comic and into your living room ready to make an impact at your next costume party or cosplay event.