Raindrop Assistive Switch - Cap for round 12 mm tact switch

Simple mod of the [Raindrop Assistive Switch](https://www.thingiverse.com/thing:3635665/) cap allowing the use of (cheaper, easier to find) 12 mm tact switches with round plungers instead of the square ones use in the original.

STLs are supplied for:

* 5 mm plunger, such as *OSEPP Momentary Push Button Switch, 12 mm Square*

* 3 mm plunger, such as *Adafruit #1119*.

OpenSCAD code is in the *How I Designed This* section.

You'll still need to print the base from the [original](https: