I love bitcoins :-)
Read about bitcoins here:
"Bitcoin is a distributed electronic cash protocol and a unit of currency. Bitcoin uses cryptographic technologies and a network of computing power to enable users to make and verify irreversible, instant online Bitcoin payments, without an obligation to trust and use centralized banking institutions and authorities." ** http://en.wikipedia.org/wiki/Bitcoin
I used a mix of FreeCAD and Blender softwares for the 3D design. I also used Inkscape for edit the SVG original bitcoin logo. I used Blender for importing of the SVG file.