i have a p.e.w female and a black hooded male they have been in the same cage now for about three months and no babies (friend with no benefit ) they snugle up and play together, i was thinking of getting another male. can you cross breed them with a dumbo or jumbo rat, and i would like to end up with some odd colors or wavey hair or a blazed or spotted dalmatian, how would i go about to get one of these colors. i'm not doing gene splicing. told my boys if we get a special color or an odd one from the litters they could have a new pet. all my rats are pets but some are food. and they kids are ok with that. and my wife likes the blazed color with the v marking on the face and blotched on the sides