US 6,071,165 6/6/00 THERMAL POWERED DIVING DEVICE Blonder, Greg E.

• This is a light powered version of a Cartesian Diver, where light causes the diver to increase or decrease in volume, and thus density. Consequently, it rises or falls within a column of liquid.

US 6,012,959 1/11/00 THERMAL-POWERED ROCKING DEVICE
Blonder, Greg E.

• This toy rotates once a minute powered only by the heat from a lamp or bright sunlight. Click on the image for a full explantion, or see the patent.

US 5,620,371 4/15/97 COMPUTER TRACKBALL Blonder; Greg E.

• Instead of a solid track ball, this input device employs a "glide ball" ( a floating inner sphere within a transparent ball, weighted so an image on the inner sphere remains eerily on the top). Just for fun or advertising purposes.