Question on paint?

[slynneblarp.livejournal.com]

I'm going to decorate some Altoid Tins I've got saved up. I was wondering if there's any special paint I should use? And if I decide to decoupage them, what kind of glue do you use?

I'll be making these into magnetic needle savers, fyi. I'm tired of losing needles :)

Thanks in advance!