Funny thread! We've had some interesting ones over the years too. We currently have fish named Goldie, Speck, Redhead, Sparkle (all pretty accurate) and then there is Winn and Dixie, they got named after watching Because of Winn Dixie (awesome movie if you or your kids haven't seen it btw).
Then the cats are Oreo, Milo - who looks nothing like the movie cat and Rascal. Rascal was funny how it came about. He was really little and dumped at my parents place, they live on a busy road so he came here. We let her bring him in the house for awhile because he was so little and still on soft food. The first day we had him in I was at the stove cooking and he climbed my pants leg and I couldn't stop myself and said/yelled "You little *not nice male b word*" and Morgan says "Mom, what did you say?!" my response was "I said 'You little rascal!" so from then on he was Rascal and has lived up to his name, clean and edited versions both