lol, this is very interesting

clover: clovie, clove, pumkin, big red, pup or puppy, when she was younger she got puppysaurus *alot* oh the wussweiler & and the pittbull (but people are just joking when they call her the pittbull), killer

penny: princess, penn penn, little dog, little black dog, snoopy or snoops, penfold, little puppys/doggies (both penny and theo) penoopy (penny and snoopy), penelope.

theodore: sir theodore, theodore farty , fartydore , the' the',

the cat yumi: feral