What 3D model should BrickSolvr turn into bricks next?

BrickSolvr launches tomorrow. I built it to close the gap between a blocky 3D preview and a model you can actually build: upload an STL, OBJ, GLB/glTF, or PLY, choose the size, colors, and brick inventory, then get a stable layout, exact parts list, and layer-by-layer guide. Everything runs locally in the browser.

I'm choosing the next demo model and would love ideas. What would make a convincing stress test—an organic character, a vehicle, architecture, or something else? If you have a public 3D model in mind, share the link and I'll test it.