build time: 7m
on thingiverse: http://www.thingiverse.com/thing:84932
Printed with 4 filament changes on Makerbot Replicator 2 with medium resolution on the coarse side of the building plate. the Ritter08-version had too fine detail so the Ritter27simplified-version worked best for me.
i also provide the Ritter08-version for people with a better printer.
The tool chain to create this: