My pigs are named Minnie (F), Bandit (M), Bruce (M) and Toby (M). When we purchased our pregnant "male" guinea pig, we named her Olly, which I still think is such a cute name, but it seemed inappropriate to recycle when the boys were born! The two female pigs I had as a child were called Ebony and Mable. I also like fruit/flower names for girls.