I got into sex toy "hacking" through the fabrication side of things by 3d printing clamps other people designed. Designed and printed own nose hooks which I'll create it's own thread for because there's a fun amount of collateral that came out of the project but I haven't documented it anywhere yet.
Next projects may be even more low tech, interested in creating my own hooks with wire, and learning how to do silicone molding from 3d printed objects. Maybe more design stuff: make a parametric version of the nose hook or design a cheek spreader.
Headphones are my other tech fetish