Pantyhose
As you can tell by my name, my favorite way to masturbate is while wearing pantyhose. I first started this when I was about 11 or 12. The best technique I have found is to put on a pair of hose, preferably sheer to waist, and already worn by a woman :). Then I put a condom or plastic bag filled with lubricant over my cock. I can then lay down on my stomach and hump my bed or a pillow. The softness of the pantyhose is very erotic and the lotion filled baggie feels like a wet pussy. Gets me off every time!