Discuss the various aspects of heat press technology. Transfer paper, inks, plastisol transfers, vinyl cutters, printers, commercial usage, durability, suppliers, etc.
I think most of the embroidery shops in your area could make embroidered patches for you (if that's what you're looking for). To make it "heat applicable", they just have to use "double adhesive" sheets, placing the finished patches on one side, applying heat using home iron, and cutting each patch using scissors. When you finally want to stick the patches on your garments, just peel off the backing sheet, place the patch on the garment and use your home iron.