A simple glass cup made with Blender. It has a Cycles Render glass material set up, along with two gray planes (one as a floor, and another as a backdrop. The cup gradually widens toward the top; but most of it has a similar width. Enjoy!
P.S. I use Blender to do all my animating and 3d modeling. Because of that, some of the extensions don’t export very well (or just don’t import well back into Blender; they might import better into other programs); there are generally a few issues with the formats other than .blend. If you have Blender at all, I recommend just using the .blend file; it’s all set up and everything. – 3DS: Imports with flat shading and without (complete; the original material nodes vanished) materials. – OBJ: Imports without (complete) materials. – FBX: Imports without (complete) materials or textures. This is the only extension that imports with the original camera and lighting. The shading might not be perfect, as well.