Layering HTV – How to Layer Glitter, Neon, & Metallic Heat Transfer Vinyl! The challenge: Heat Transfer Warehouse sent out the same t-shirt decoration supplies to a handful of bloggers to see what we would come up with. (Check out the results of the Halloween HTW HTV design challenge here!) Watch our YouTube video to learn more. https://www.youtube.com/watch?v=wIbQLxqVkKo