Are you tired with clicking mechanic button? Try our capacitive touch sensor. Right now we can find touch sensor on most electronic device. So uprade your Arduino project with our new version touch sensor and make it cool! This little sensor can "feel" people and metal touch and feedback a high/low voltage level. Even isolated by some cloth and paper, it still can feel the touch. And the sensetivity well decrease as isolation get thick.
For toggle touch module, its output changes every time human touch detected, there is also the Momentatry touch module
that outputs HIGH when human touch detected while LOW when human touch released.