Lots of SP User's use their pets photo as a Gravatar
Only one I can remember is talon6837364636 or whatever those numbers are i have goldfish memory
RichGWall on Juno new orgins has a Gravatar of their dog
Though they said they only clean the dog once a year

Snooki, my sister named the cat that way and the cat is perfectly fine

The stray cat in the road, sorta like RichGWalls dog but a cat

a cat that looks like maxwell, looks like maxwell, died.. this is one of the few images of the cat