I've sold all of them except for the original one for my own, Munch. I'm sure I'll get more hopefully though! Two rooks is nice! I have only got one of those ever. same with dustbunny and a few others oddly enough!
I only ever get piggies when I buy the boxes from vendors. I have had to trade or buy outright all the non-piggie cubis I have. I do not have good fortune with the cubis. :)