It's some kind of robot ant or something.

Yeah. 

Family Crest

This is a family crest. Probably, anyways.
Symbols used? Computer, as my family really seems to like them. (Amateur) Architectural drawing of a mill, to represent a relative who was a skilled architect, as well as the fact that, somewhere along the line, my ancestors ran a mill. A Celtic Knot, to show a small part of my heritage, as well as the fact that my family generally seems pretty interested in history, particularly ours.
Color combination? Black and dark grey contrast with white and lighter green.
Tools? Live trace for the pencil and celtic knot, live paint for the knot, grid tool for the grid in the drawing, line tool for the mill, paintbrush for the spokes on the water wheel, gradient tool for the screen and the front of the tower, rounded rectangle tool for, well, a lot, and finally circles for lights and the water wheel.
Enjoy! Or don't. It's up to you.

Mercedes Logo: Completed

Okay, image complepte.