Well, they make a special nail polish for dog nails; but I just use regular "people" kind on mine. They don't ever even sniff their nails or make any attempt to chew or lick at them; and the kind I use dries in 60 seconds. I wouldn't recommend doing it to any dog who has allergies or chews at their feet or anything though... and Kahlua, bless her; HATES the smell of it. If I'm doing my own nails and she gets a whiff, she'll run to the nearest couch or blanket and just start writhing and rubbing her face in it...sooo adorable.
i didn't know you can paint your dogs nails.