I took a iron monger figure and cut it in half after that I sculpted the chair and added the arms with magnets . The backpack is from some random GI joe figure. I thought it would be cool if the walker was powered by ooze so I added a green hose from a bane figure. The krang head is a cheap knock off first gokin. The krang head didn't have arms so I sculpted them they don't have articulation like the original but I'm ok with that . I also did a full repaint of the head