Removing Paint From Keycaps?

TL;DR: Is there a quick and easy way to remove the paint from the keycaps that won’t damage them?

Long version: I got some white (unpainted) keycaps for my Model 01. They’re really cool, but one of them seems to be slightly warped, which causes it to rub against the neighboring keycap and sometimes get stuck. I’ve fixed it for now by using the original keycap there. That’s fine, but I have this one random black keycap now and it would be nice if it matched.