Yeah that's where a drill press..

would come in handy.. Normally I'd say take a punch and a hammer and punch a divot in the rivet to hold the drill bit, but if you do that, you'll crush the toy.. Hmm.. I'll think about it for a while and see if I can think of a way to hold the drill steady.. like I said, a drill press would be perfect.. enclosing a pic of one.. you put the toy on the little shelf thing, then rotate the thring prog handle thingy to raise and lower the bit perfectly into place..

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Friendship is like peeing your pants.. Everybody can see it, but only you can feel the warmth..