Specializing in Custom Iron On Vinyl Decals. Have that favorite t-shirt, tote bag, baseball cap, apron...the list goes on, that you would like to make a little more special? Show off your creativity with a Custom Decal! These Die Cut Iron-On Heat Transfer Vinyl Decals are cut from high quality vinyl. Decals can be applied to and work best on anything made from 100% cotton, 100% polyester or a 50/50 cotton/poly blend material.