Can you tell I'm extremely into the idea of preserving a child's youth? Is that normal considering I have no children? I'll wonder these things in the privacy of my room later. In the meantime, look at this guy.
This Etsy seller will put a child's drawing (or anyone's drawing really) onto a small keyring for you for $90 - $140 (depending on the size of the drawing). I don't know if that's a ludicrous price, but I would probably consider doing it some day. It's such a sweet idea.