I've done that before with heating lights. I use to build and make all my screens and equipment when I first started out, been screen printing since 1991. Use to do all my colour separations by hand. Shirts from the 70s not all of them through were iron-on heat transfers. The glossy slick ones are called cold-peel transfers cause you wait till the transfer is cold and then peel it off and that gives it that slick glossy look.