Gear Change

Designed by Tony Fisher and Oskar van Deventer; sold by Mefferts 2013.
(Plastic, 2.5" face to face; two versions identical except for stickers; pink opposite red, white opposite gray, yellow opposite orange, light purple opposite dark purple, blue on lower left opposite light blue, light green on lower right opposite dark green)

In the theme of the Gear Cube, gears move, the shape temporary changes, and then returns to normal as you twist along a plane. Starting with it solved and twisting along a single plane restores the shape every two twists and restores the faces to the correct colors every 8 twists. It takes 24 turns to restore both the face colors and have the T. Fisher on the white face and the Oskar on the yellow face in their original orientations.