Transformers Legacy United keeps the creativity up with the rockin' and rollin' trike made of lava and stone named Bouldercrash! At first, I was put off by the post on the back and worried about it's effects. BUT...as it turns out, it's not obtrusive at all and serves a neat accessory storage function. He's actually really grown on me!
https://youtu.be/Td4Q-Fw9Xo8