OK, last one for the moment, I commissioned this one from my daughter, for anyone who needs an idea for the 14th :) Again, http://3dp.rocks/lithophane settings No fill, No roof, No floor, No support, No raft, 2 shells, 0.3mm layer height natural PLA. 3 hours to print It scales extraordinarily well, the smallest one in the picture is 25mm (1") across and takes 9 minutes to print. So its a good model for napkin rings, cuffs and LED candle holders too :)