수퍼내츄럴 name theme, someone help?

I have 3 gerbils, 1 male and 2 female.. I don't really no anyone to ask this except other 수퍼내츄럴 팬 but I'm looking to interesting and creative names from the show for the 2 females. They don't have to be actual names like I named the male Colt, after the obvious. But I'm stuck on names for the girls. Alot of the names in 수퍼내츄럴 are pretty ordinary to say the least (Jo, Ellen, Pam, Jess, Mary...) so I'm stuck. I wanted something creative that made it where 당신 really had to be a 팬 to see the theme behind it. Anyone able to help out here?