Kirby's just says:
Kirby
(my phone number)
Reward
He also has a rabies tag that has the vets number on it.
I ordered his from petsmart, its a small brass tag about 1" in diameter very nice quality:
http://www.petsmart.com/global/produ...N=2032897&Ne=2
I don't know why anyone would say not to put your contact info on it, how else would people get in touch with you? I HAVE heard that you shouldn't put the dog's name on the tag, in case they want to keep him, then they'll know his name. But I put his name on it anyway, I figure if anyone wants to keep him it won't matter if they know his name or not.