Wed, 19 Jun 2013 03:50:05 GMT Patriiick - showroom of unique products for sale on Ponoko http://www.ponoko.com/showroom/Patriiick/5924 The famous impossible Penrose triangle made possible, size 6.53cm x 2.11cm x 5.66cm<br></br><img alt="Triangle_impossible_dwf_showroom_image" src="http://static1.ponoko.com/design_images/images/44524/cc638431-a776-d40b-e717-f4e42502fbc5/triangle_impossible_dwf_showroom_image.png?1307453828" /> Fri, 10 Jun 2011 07:09:18 GMT http://www.ponoko.com/showroom/Patriiick/5924?time=Tue+Jun+07+14%3A21%3A30+UTC+2011 Patriiick