So I saw a video online of something similar and decided to do an experiment to figure it out for myself. The longer I do this stuff, the creepier my experiments seem to get.
Textures could use some work, but the particle effect worked pretty well lol.
I know a few people who could actually use one of these though, so you 3D printing specialists better get to printing these out for patients in dire need of a brain transplant! 8)