You know how you know a place is a favorite for kids? When it's a 30-minute ride to get there, and the munchkin goes insane with glee when you mention the possibility you could go there for lunch. The Purple Cow gets just such a reaction. This restaurant, styled after a 1950s soda fountain, is a favorite for parties because the kids can eat purple ice cream and get really loud, and parents can dull their frazzled nerves with spiked milk shakes. The standard American fare is passable for adults, but the kids love it. Earplugs aren't included.