These are Chewbaccas combined with other famous characters, mostly from books and stuff.
The Chewman Torch
What would you get if Chewbacca happened to be on the spaceship piloted by Reed Richards when it was bombarded by those pesky cosmic rays, only he happened to be arm wrestling with Jonathan Storm at that exact moment, so that their DNA got mixed up and Chewbacca got Jonathan Storm's powers? That's right, you'd get The Chewman Torch! FLAME ON! (and thanks to Jim Belmessieri for the suggestion!)