Show off your Sharpie (tm) markers in style - keep the colors in view and in reach!
Full Story on MkrClub.com: http://www.mkrclub.com/2015/09/3d-printed-porcupine-pen-holder.html
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Porcupine Pen Holder
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Creative Commons Attribution-NonCommercial-NoDerivatives
You can download and share as long as you credit the creator, but you cannot change the material or use it for commercial purposes.
Licensed under CC BY-NC-ND
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