Canny

OKAY SO, the idea behind Canny having a shit-ton of different forms is that each form is an alternate universes version of themselves, rather than them shapeshifting or dimension hopping or something. Each version of them has their own personality and none of them are aware of each other canonically (tho drawings of them hanging out together are 1000% okay, i just. i love crossover shit).

Canny's base design is hella flexible too, pretty much the only necessary components are: relatively even amounts of black and yellow in their color scheme, green accents, at least one eyepatch with the radioactivity symbol, and a long and/or bushy tail. Aside from the previously listed things, their anatomy, gender, proportions, species, markings, and accessories are open to interpretation. 

Unless I link you to a specific version of their design for a commission or trade, you have total free reign within the loose guidelines listed above.