Used together with my Coolpix 990 remote control, this turntable forms an automatic studio for simple VR-object movies. It rotates the object on 360° and shoots photographs with equally spaced angles. You can then animate these images with a VR-object viewer such as PTviewer, Freedom-VR or Objplay. Remote and turntable can both be built with Lego Mindstorms Robotics Invention System (only parts included in this box are needed).
You can see some samples in my VR-object page.
To have even exposure between images, don't forget to use Automatic Exposure lock. The other method (that I applied) is to use full manual mode. Similarly, I used fixed distance focussing.
The rotating disk placed on Lego wheel is made with sandwitched cardboard/foam/cardboard (see photos below). Make it large enough so that disk edge is out of depth of field.
July 2004 update:
Bo Lorentzen, inspired by this page, built a motorized lazy Susan: a wheel, pressed against the edge, drives the turntable. A black and white strip is read by a light sensor to measure rotation angle.
See below the photographs he sent me: