They put it on your drivers license and I am a yes. But I don't think that they can use much. Recently I developed a heart problem so that is probably a no go. I have had a lot of kidney stones so they are pretty scarred. One kidney ruptured while they were trying to crush a stone. I probably drank too much for my liver to be useful to anyone, my corneas might be ok. One has a scar on it from a youthful accident involving a fire cracker, but I can still.see through them so maybe good.
bones can be transplanted, so maybe bones could be used.
If anyone can use anything, they are welcome to it.