Sounds like a super cool idea! That cryptokitties one did really well if you could do one on steem but even more customizable like you mentioned I bet it would be pretty awesome!
I'm kinda tight on steem, but I'll try to think of a cool pet idea and let you know if I think of one.
That would be so cool, I'll try to think of what suits you? :D
Word! Ferrets and butterflies are probably my favorite animals.. I'm not sure how it would work to mix the two together, lol.. But.. Maybe it would be cool! :D