I'd first like to thank 'ES0602' for his easily-printable design (http://www.thingiverse.com/thing:454992). However, I wanted a puck that could float on both sides. I only spent 2 minutes on Tinkercad editing his design to my liking, as opposed to the longer process of creating from scratch. So all credit goes to 'ES0602' for this one. Support will be necessary. As for infill, different %'s will yield different 'feeling' pucks, but too much infill could cause the puck to 'stick' to the table. I used 20%, ES0602 used 10% on his.