[kevindamm]

Would a high enough dose of UV also work? I suppose it would ruin most pigmentation too, though.

[joshuamcginnis]

Exactly. UV would definitely work but is also destructive to many kinds of items.

[Cthulhu_]

I've got a bathroom mold cleaner that's basically a strong bleach. I'm sure it'd work on the modl, but... yeah.