Evan Designs Touch Sensor Switch
A great option for your project instead of a traditional on/off switch. This touch sensor can turn your 3 Volt LEDs on and off. The sensor is 2Amp so it can run up to 90 LEDs.
The touch sensor comes in 2 options.
Use this sensitive touch sensor with a 3 Volt Wall Adaptor, AA Battery Holder or AAA Battery Holder. The coin cell battery does not work well with the Touch Sensor Switch, occasionally the light cannot be turned off or on. If you want to use the touch sensor switch with a coin cell holder you should get the coin cell holder with switch. If the light gets stuck in either on or off, the switch can be used to re-Set the touch sensor.
This touch sensor can take the place of a normal switch. Since the AA holder has a switch, you can just leave it permanently in the on position.