An OpenSCAD design that records whether cats have been fed for a given meal. (Lunch is just optionally there, even though it isn't really used)
The switch used in this model is care of 3DM_Prints_1892311 on Printables. I use their model "Slide Switch - Print-In-Place" in this design. That is licensed Creative Commons 4.0 Attribution. You can find this on Printables at: https://www.printables.com/model/865051-slide-switch-print-in-place