Female guinea pig names?

I am going to get 2 female guinea pigs in late July. I am buying them from Petsmart. (I don't live near a small animal shelter, sorry). Anyway, I went to Petsmart today, to look at cages and see the piggies, and I found 2 that I want. One of them has white fur, with some black on her back, and black around her eyes and on top of her head. The other one has black fur with small light brown and white spots randomly on her fur. I don't know what to name the 2nd one. The first one, (black and white) I want to name Pepsi, but I don't know what to name the other one. Any good names for a female piggie? Thanks in advance! (No rude comments, and no comments against Petsmart). :)