On, Donna and Blitzen?
"According to the Alaska Department of Fish and Game, while both male and female reindeer grow antlers in the summer each year, male reindeer drop their antlers at the beginning of winter. ... Therefore, according to every historical depiction of Santa's reindeer, every single one of them, from Rudolph to Blitzen, had to be a girl." --"Reindeer Girls" e-mail from a friend