If you receive lots of holiday time greeting cards, then we have the perfect 3D printed contraption for you! It's a 3D printed holiday greeting Card Stacker, created by New Zealand-based Murray Clark. How does it work? Well, you print out the Card Stackers, which have thin walls and slotted grooves for the cards to fit in. Then you use the stackers to build a card tower of sorts-- you can have up to six cards in one stack if you assemble things correctly. You also have the option to display cards as offset or straight. This is a much better way to display those holiday cards than piling them on the mantle or spreading them all over your tabletop --which is what most of us end up doing! Find out more in the full story: http://3dprint.com/98236/3d-printed-card-stacker/