Slipknot Kids t-shirt Electric Blue. Need Slipknot Kids Clothes for your Littlerocker? Slipknot Kids Metal T-shirts and Kids Metal onesies are available at Littlerockstore. This T-shirt is 100% Official merchandise and made of 100% soft cotton. A free Littlerockstore mini Inspiration Book comes with every order. Fast and reliable shipping & Rocking Customer Service included!