As far as pets go just about any rat or mouse can make a great pet. They are very social animals and will bond with you if you handle them from a young age. I had a mouse early on that I became quite close to. My entire mouse breeding stock came from this female (Campbell).

That said, I wouldn't recommend making friends with, naming, and handling feeder rodents. Unless you're heartless feeding off pets and their babies is very difficult. At least for me it is.

Breeding rats is not rocket science. Put two together and in a couple weeks you have 13 or so. It doesn't take long for them to grow so just add up your snakes and do the math.