An idea I had a long time ago. When I was watching the first season of Bleach I often pondered what powers Ichigo's friends might have as Substitute Shinigami. The design of Chad's arm reminded me of Rayquaza who I'd seen once before in the Super Smash Bros Brawl for Wii. I thought I could design a Bankai for Chad by combine design aspects of both. I'm still unable to do the body but this image here is what the face should look like.
IF ANYONE IS INTERESTED IN DRAWING A BODY FOR THIS GUY, BE MY GUEST. JUST GIVE ME CREDIT AND SEND ME THE LINK.
You could also use this as a Hollow mask a third piece to Chad's Fullbring.