The PowerPad Launchpad breaks out two pins from a CR2032 connected in series with a switch, so that it can be connected to other components.
This on/off switch that can be used in all sorts of projects! The pads can be used with conductive thread, space tape, paint, wire, thread, copper tape, alligator clips, banana plugs and more. You can even solder to them.
For use with a CR2032 battery.