Thingiverse’s Phooky makes fantastic Planetary Gear Calling Cards that sure to get your digits noticed!
The cards, which feature working planetary gears, are cut from various layers of card or Bristol, and then assembled like a sandwich to form working gears that you can spin in your very own hands.
If you’d like to make your own, just head on over to the site and download, print, cut and assemble all of the necessary pieces and parts, and you’ll be spinning your way through business cards in no time.
[Thingverse - Planetary Gear Calling Cards]
[Via: Gizmodo]
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