Here’s a method I came up with to have fun with sleeves. I’ve been playing around with this old medical compressor, it has two ports, one blows and the other sucks. I hook a tube up to the suction port and connect that to a Thumb Valve, it’s a Tee in the line that I put my thumb on to block the 3rd outlet, which makes the sleeve suck.

I made this Insert that I put into the sleeve, a flared bell shaped cone. Which has a tube connected to it that goes to the Thumb Valve. It creates an open pocket in the sleeve to allow the suction to flow.

Now the fun comes when you start playing with the Thumb Valve, you can open and close in a rhythm, so the suction is coming and going. If you only close it half way, well it just sucks a little and there is this vibration that is transferring from the compressor via the tube that feels really good! How much you close it varies the intensity of the vibrations.

I use the sleeve like I normally would and time the suction to my in stroke and release as I pull out. It can be a workout for your thumb, but it’s worth it, I enjoy it a lot!

I made the Thumb Valve out of a 1/2″ Barbed Tee for irrigation. It happens that the 1/4″ tubing that is 3/8 OD just fits inside of this snug enough to seal. I added the steel nuts to give it mass and makes it easier to handle.

Now, you will get a kick out of this, the Insert is made from a plastic bottle top with its cap! I drilled a hole in the cap and threaded a quick connector into it. I cut the neck off the bottle, about an inch long, sanded the edge then snapped a piece of silicone tubing over it. That makes it safe for my cock head to come in contact with it.

The compressor is a DeVilbiss 561 Series. I got mine at a garage sale and I see them once in a while for sale used. It’s a handy little thing, I use it to dry out my tubing when I have to clean it. It has a fair amount of suction, but not so much that I’m concerned about possible injury.