[plz comment properly kthnx!]
As we already know CHAO are small creatures those can be rised :3 they appeared first time in Sonic Adventure and then in Sonic Adventure 2.
CHAO absorbs traits and looks from various things and animals or their breeder.
This is what a CHAO would look if its rised by Spike, looks like it's already started to resemble him
Started working from 5 minute pencil sketch, inked and colored in Photoshop. Now that's one crappy background xD;.
CHAO are © SEGA/SONIC TEAM,
picture is made by me.