Beatboxing: Crab Scratch

This is a cool Instructable on how to make a record scratch-like noise with your hand and your mouth. Hope you enjoy! :)

Things you'll need:
A hand (yours)
A mouth (sorry, Hello Kitty! and I was trying to be funny when I said that)
Lungs (yours)

Put your lips in the bottle blow position. (If you're having trouble, look at the image)

Put your hand out, but bend your hand like the images and put your thumb at the side and make a gap between your index finger and thumb.

Put your mouth on the gap and inhale (suck in). If done right, it should make a whistling sound. To shape the sound, you can say stuff while inhaling without using your voice. For example, tooka tooka. Experiment with your mouth and tongue and find a good balance.