A tile saw (https://en.wikipedia.org/wiki/Ceramic_tile_cutter#Tile_saws) can be used to cut interesting pebbles into slices to make into ear rings.
I hot glued the pebble to a piece of board to have a reference surface to run against the fence on the tile cutter. Used a diamond bit on a dremel to drill the hole.
Someone asked me to build a gadget that will randomly play one of 4 sounds when a cord is pulled.
I decided to build it using Sparkfun’s MP3 trigger. I designed and laser cut a case for the circuit board and plasma cut an adjustable hinge mechanism to mount it in. (download .pdf).
I am really please with the MP3 trigger, setup was a piece of cake: put mp3s onto a microSD card, add config file to set a trigger to random, solder on a switch, done. Designing the case and mechanism and setting it all up took a bit longer, but a satisfying project over all.
Made this carving of an eye a few months ago. Wanted to put it up somewhere where being watched might improve behaviour. So, I put it up next to the washroom sink. Maybe it will improve handwashing. Not mine of course, that is already perfect.
I clearly should have some content at the domain I set up to have a personal email address, so here is a start.