Littler sibling to http://www.thingiverse.com/thing:1887004.
2x Housing 1
2x Housing 2
4x 5mm-6mm long pieces of filament
Made out of PLA, used epoxy glue to stick everything together.
To mesh gears at 90 degrees, use 2 gears with the same twist.
To mesh gears straight, use 2 gears with opposite twist.
Made more for little fingers.
Other configuration options are available in the extras.zip
The gear generating OpenSCAD script is not under the CC license. It is under the GNU GPL.