@Overstock - Turn the gears of artistic expression in your home or office with this unique decorative accessory Decorative art piece made of durable hand-painted metal Multiple gears motif with a rugged, industrial lookhttp://www.overstock.com/Home-Garden/Clock-and-Gears-Metal-Wall-Art-with-Clock-33.25-x-40.5-x-3/2403972/product.html?CID=214117 $118.99
Epicyclic Wall Clock 3 This clock is an original design that uses an epicyclic (planetary) gear train. The gears are aircraft quality birch plywood from Finland and the frame is made of jatoba (sometimes called Brazilian cherry).
Unlike most clocks, this 3D printed 'Holo Clock' features a two gear trains, each one moving an arm around (one for hours and the other for minutes). It's a clever and unusual design that is still very easy to read.