If you are just starting out, or only making things for yourself, you can get away with spending only $30-$50, but expect to have to invest more if you plan on doing things on a professional level. You'll need a press (homemade or commercial), heat source, a way cutting and sizing the material, a way of holding the pieces together (eyelet setter), and away to finish the edges and shapes. Many ways to accomplish all these, some better than others, some easier than others, depending on the tools you have on hand. I've made things using a heat gun, two kitchen pot holders, and a block of wood with sandpaper, but it's a heck of a lot easier using an oven, press, and a grinder. The more you make, the more you learn, and the better your projects will be. When starting out, you can make and sell items with the idea of reinvesting in equipment and tools to make the job easier and better.