This is Bones Mello. He is an Italian greyhound. He also has the best doggie costume we've ever seen.
Bones' human made him the AT-AT suit by constructing a model of Bones' body out of foam, and building the suit around it to minimise the amount of stress to Bones himself.
The bodysuit is slinky painted fabric, over which sits the AT-AT body made out of foam board, with cannons, feet and joints made from plastic bits and pieces, such as yoghurt containers.
We love Bones. Go and join his Facebook page here.