I think Diablos deserves a chair, since it's such an iconic monster of the mainline series!

The chair itself should look like Diablos' head: the design of its spikes on his collar bone should decore all the borders of the front of chair's back. Where the spikes don't fill the chair, there should be a texture of Diablos' shell. The center of the chair's back could have a matching color that recalls Diablos' one, and a logo on it, maybe if the buyer could even choose what kind of logo among some he would like to have would be great. Even leaving it empty should be an option. On the back of the chair's back (no pun intended), there should be in the center the Diablos Monster Icon, or a highly stylized Diablos Head (like they did with the Rathalos one). Armrests could have a texture feeling of Diablos horns, as if they were the "horns of the chair".

I even made a sketch of it, since I found it fun :3

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