"It's not a good idea to make people mints just because. One of the things coins can't do is unmint a person. I trust my Tony just fine, but he doesn't tend to go for jaunts in other worlds like I've been doing lately, he can just ask me or Sherlock for whatever he wants, and also he wouldn't be a particularly effective mint - I have the power so I can make my own triangles and squares new wherever I am, but all my big coins are from Sherlock and the other Bells who are mints get theirs from minted Whistles, because -" Pause. "Are you, like, squeamish?"