(I know this really belongs in the custom section, but I'm afraid anyone who has an answer might miss the post there...)

Well, I've now got my first two Muggs (both blank white) and I was wondering if anyone had any tips on what to use in customizing them. I had planned on using Sharpies or art markers, but I tested the Sharpie on the bottom of the foot and most of it wiped right off...

(EDIT: and because I'm guilty of posting a custom question in the wrong forum, I'm moving my own post, too... )