An orange cup against a floor. Wierd textures all around.

A wooden coffee table made in bryce.
Different textures for the legs and face, no background.

A rubber duck made in rhino.
Visually simple, but conceptually difficult.

This is one of the assignments that I missed, so I made it up.
5 pictures, with one on the background and 4 above it in layers,

This is a 3d logo. It uses a symmetrical lattice for the dimensions, and a psd for the picture.

It's space.