a resizable Big Red Button with optional text.
New! Added support (untested) for a microswitch! Tested the microswitch, and it fits snugly in the supports, and the holes line up properly, but I'm going to move it down a little to a switch without an integrated lever will also work. Also, I want to add supports for springs, the button as assembled doesn't have good feel - will post updated scad file soon.Solder wires to a tactile switch and hot glue it in the space provided on the bottom.
Add a spring, then screw it together with wood or sheet metal screws.
For the microswitch version, the dome has a breakoff section to account for the height of the switch.
Use two M2 bolts, and washers to secure the switch in place.
Note that the microswitch version is as yet untested.