Do you want to take over the world? or just annoy your roommate? This should probably do the trick (to annoy someone, taking over the world is a little far fetched)

Step 1: Materials

For This Instructable you need:

* a piece of tin foil (or other conductive materials)
* electrical wire
* tape
* Polyurethane sponge (with scouring pad)

Tools:

* a knife (i used my scalpel) or scissors

Hardware:

* hacked USB keyboard

Step 2: Rip It Apart

Start out by removing the scouring pad from the sponge (we only need this part).
Cut it in two and cut a round hole in the middle.

Step 3: Fan It Out

Strip the end of a piece of wire and fan it out,
Tape this to a piece of tin foil and fold it to the size of the scouring pad.

Repeat this step

Step 4: Tape It Down

Place the foil wire combination on two sides of the scouring pad and secure them with a piece of tape.

Step 5: Hook It Up

I taped mine to a cap and hooked them up to the 6 and 7 button of a keyboard and scripted a couple of lines in processing to create the noise.

The .zip files contains the script.