Klein Bottle Base
by calebkraft, published
Here is a modular base for the Klein Bottle.
The basic base piece can be used alone.
The extended base piece has a mount inside for a dc motor, servo, or light.
There is also an optional wheel with magnet mounts. You can attach this to a servo arm.
do whatever you want inside the extended base, then superglue the top on. A couple drops will hold it firmly but still pry apart fairly easily if you have to get back into it.