I'm really not sure to be totally honest but I'll give it a go:
- Hamster: Chewy
- Dog: Corkie
- Dog: Alfie
- Cat: Miff
- Wart: Ed
- Cockatiels: since this is a family friendly site I'll refrain from repeating all the names these annoying birds had.
- Iguana: Axel
...and various other pets (mostly cats) that girlfriends had at the time we were dating.