This is a fairly simple tool, very fast to make - Sore finger so I designed this to help open pop top cans (with whatever contents.)
Slide the lever in to get a good hold of the ring, lever / pull etc. the can open. About 26 lines of code.
Pen holder for my coding area, you can't really see the clip on the back but can see how the pens fit & pen's clips would latch into the designed spots.