I'm sure that I could make something out of myself. The problem is, how would I finish the job? Because whatever parts of yourself you're going to use as raw materials for whatever something it is you're going to make, once you start pulling them off and digging them out you need to work extremely fast - even if you can avoid losing consciousness by limiting blood loss, at some pretty-quick point, shock is going to set in. After that happens, you're going to have a very hard time proceeding to plan. Probably resulting in a very crappy finished product.
So why bother? Get somebody else to do it for you!
Plus, if you're working alone, it is not going to be possible for you make something out of all of yourself. At best, you'll manage to make something out of a pretty minor portion of yourself.
Again: why bother.