bad attitude - lil' ragnaros. b.a. baracus would be proud - "too soon! you have awakened me too soon, you crazy fool!"
buggernaut - fire-proof roach. because he is one.
cat in hat - feline familiar. seemed like a reasonable name for a cat wearing a hat.
cute widdle paws - prairie dog. because mylune and her heaving, eye-level bosom want it that way.
deadliest catch - emperor crab. wednesday nights on the discovery channel.
dreamer - wanderer's festival hatchling. "one day we'll find it / the rainbow connection / the lover's the dreamers, and me."
hanged man - restless shadeling. if you've read walter jon williams' metropolitan, then you'll get the most excellent reference. if not, well, that's not my fault now, is it?
j thaddeus esq - huge toad. because of this huge toad:
mighty unclean - stunted yeti. "i'm dirty, mean, and mighty unclean." yeti needs a bath.
feisty oscar - red panda. just because.
whole lotta rosie - silithid hatchling. she's a whole lotta woman.
meanwhile, i have found that the names of the 50 states are not allowed for pet names, but if you drop the directional prefix the game'll allow it. so "dakota slim" or "carolina crunch" are good to go.