[Justhereforfun]

Here's one I like. You must first be soft before you start this.

Tie a shoe lace around the base of your cock and balls nice and snug, not too tight, with the knot at the top. Then fold your dick back so the head touches the knot. Bring the laces up and tie your cock down this time a little tighter so that your dick doesn't slip out. If you like you can also cross the laces back down under your balls and then back up and around them as tight as you like.

Now let yourself get hard. (you probably already are by this point.)

Now try and stimulate yourself to orgasm.