This SPDT snap lever switch is modifiable into tactile sensors.
This is Zippy DM-03S-1P-Z a single-pole, double-throw switch that is useful for tactile sensors.
The metal tab is solderable, but it works best to use an acid-based flux or silver solder such as the kind found at a hardware store. Hydro-X doesn't quite do the job without more aggressive flux.
It's an ideal switch for Beetle Robot sensors!