Light switch self bondage device

something I've used in the past is a regular light switch.. I drilled a small hole threw the end of the switch and put a keyring threw it. Two wires are attached to the switched terminals and its screwed to the end of a 2"x12" piece of wood. The other end of the wood has a screw sticking out. An elastic or spring it attached to the ring and the screw, depending on what you use dictates the pressure.

This setup is attached to the top of the footboard of my bed. With legs chained to the corners of the bed with my ankle cuffs, a rope/string is tied to the keyring and other end tied to parachute device or a nice rope harness tied around and splitting me balls.

After that I have a ice lock fastened to the top corner of me bed and a rope ratched attached and looped threw the middle rung of head board and attached to hand cuffs... pull the rope ratchet and tighten the hands up.

Now the fun bit.... those wires that are wired to the switch terminals.. They go inline with the battery of a tens unit which is attached somewhere sensitive. So you basically have to keep tugging at the switch with your balls or the switch flips and zappo...

You could also fasten the device to a spreader bar between your legs and maybe wire it to a lamp or light.. Collared or belted to a window frame... you must keep tension on the switch with your balls or the lights turn on exposing you. Assuming your wearing your sluttiest outfit and toys and gagged... you might want to keep the lights off...