I was playing with K3DSurf and wanted a pendant made from a mathematical equation. I chose this pseudo Duplin because it looked good without needing to add an kind of ring or other means to hang it.
http://32b.it/?p=242 and here http://32b.it/?p=366
and part of the workshop at ICTP on "Low-cost 3D Printing for Science, Education and Sustainable Development" (6-8 may, Trieste, Italy) http://sdu.ictp.it/3D/book.html
3.9 w x
1.662 d x
1.535 w x
0.654 d x