I posted his message awhile ago.
Someone else had the same idea here.
Junkyard Trash (Thresh).
• His chain would be rusted iron chains.
• His face would be held up from the back (like a spine) by a metal rod or something similar.
• Have a massive tow-truck hook as a hook, (like a crane hook thing).
• His "lantern" would be a smallish, rusted (but distinctively) trashcan with holes.
• He could lose his glowing effect, but I won't think souls would be as easy to spot.
• Have LED souls for clarity.
• Have discarded broken christmas LED lights somewhere around him.
• His chest can be an old car engine. Whenever he gets a "soul" it sputters and starts smoking but by default is cracked and broken.
• Just like Trundle JunkYard, have a tyre around his shoulder.
• Could get a really old looking cartwheel pull out of the ground when he teleports or recalls.
or
• He teleports and recalls by summoning a pool of oil and jumping into it.
• When he ultimates, the posts of his 'box' would be street-lamps (rusted and deformed looking), and have barbed wire walls.
• When he dies all of himself (because he's made of trash) crumble and come apart.
• Have him pull out all sorts of objects as a joke (instead of having it as a recall/tele animation). From car engines, to aircraft engines, to tyres, wheels, gigantic toasters, computers, or Jax's lamppost wep in his hand like a staff! (this would be funny I think.).