This fits squarely into the, "umm … why?" category of items. ThinkGeek is selling a collection of "static statues of really slick robot designs," with each one being, "around 500 microns in size." That’s about 3x the width of your hair. And lest ye be concerned they aren’t "high tech" enough, each ‘robot’ is made,

using the same procedures and equipment used to make micro-fluidic bio-sensors, capillary electrophoresis chips, and electro-statically actuated resonant amplitude grating structures.

Whoohoo! They even have one made out of pure gold.