A Small decahedron. I printed it using makerbot replacator 2 with only minimal flaw due to hanging stright edge along the top so it is not recomended to make it any larger unless you add supports while printing. Hope you like it.http://youtu.be/mtErWSfwtTc This is a youtube video that I used to get the inital shape and I hallowed it out my self. All it realy needs then is some patients to get it just as you like.