You can buy 3D printed variations of this in my Shapeways shop: https://www.shapeways.com/shops/3dwp
This is a heart shaped pendant, the one in the picture is made on a Form 1.
--> Edit 03-26-2014: I added a model with some support beams. hope they help with printing on an FDM machine. <--
--> Edit 09-28-2014: I replaced the version with support beams, I have tested it and now it works on my Up Plus. I changed the thickness and amount of pillars and now the heart will print without extra support. <--