Go to a toy store and buy one of those soft, super-stretchy rubbery wigs, the kind that have the soft spikes all over that make your head look like a sea anemone. They cost about $6. (They're not actually rubber but some kind of modern gel-rubber stuff that stretches very far without breaking.) Turn it inside out so the spikes are on the inside. Put about a half-teaspoon of water-based lube inside, work the lube around the spikes, and then slip your penis inside. All those soft, lubed-up, spiky fingers feel amazing all over your penis. It's like a thousand little fingers going at you at once. It's very intense no matter how you use it – hold it in your hand and stroke your penis as usual, lie on it and rub yourself inside it, or even put it under the edge of the mattress. When you're finished, be sure you turn it back inside out and wash it well with soap and warm water, and let it dry completely. The rubber is porous and mold can grow on it if it's not clean and dry. If you can, dust it with a little cornstarch and store it in a plastic bag to keep it dry until next time. Enjoy!