Select the BRIDGE pickup only. Mute all strings at the neck with the
palm of your LEFT hand (assumes you play non-hendrix style) and take
your right index finger and instead of picking, PUSH a string (high
"E" is great) all the way toward the guitar body until it contacts
the edge of your pickup. This will almost sound like a clicky beep.
Raise and lower the string against the pickup while slowly slackening
the string with the whammy bar (using your palm on the bar). This
gives a really cool effect, which can be enhances (?) by distortion
or any variety of other effects. I will send in a WAV file soon.