Took the time to add a photo of the mostly completed body.

It was made from 2 sink extension tubes, some square stock, a drywall mud tray, and a few 3D printed bits.  Total parts cost so far ~$20.

The only batteries I have suitable to power the 12v blade are 18650's but using those without a DC-DC boost converter doesn't leave a whole lot of space for the crystal chamber.

On hold for now.