Great site! My favorite part is reading the 'female techniques'!
Here is a new method that I tried that allows you to cum without using your hands. Turn the dryer on to spin dry, and sit on top. Feel the vibrations run through your body. Then, take your erect penis and push it between your thighs. Squeeze your thighs really tight, and 'ride' the dryer. It feels awesome, although you'll need a towel to clean up.