Bicycle inner tubes and a bit of two inch PVC pipe can go a long-long way!
I've been having some very good results creating my own 'aids' using bicycle inner tubes. Whether it's using sheets of rubber to make different sized holes in (a half inch hole in a sheet of rubber makes a great scrotal ring!) or using a length of tubing to make a masturbation sleeve, this stuff is great!
I obtained a number of different inner tubes from the bike shop down the street to use as gasket material for an autobody restoration project. I ended up having some rather imaginative ideas after seeing the Venus 2000 in action and have invented a number of VERY nice little items for use around the house!
The one that deserves the biggest mention is my favorite and has been the subject of many multi-hour sessions. It is a two inch ID plastic bit of pipe cut to about ten inches. A piece of inner tube cut about a foot long is all that's needed for the next step. Place the inner tube inside the pipe and stretch it over both ends. I used smaller tighter bits of inner tube cut to half inch lengths to help hold the tube onto the outside of the pipe. I also drilled a small hole in the wall of the pipe to help with venting. Sometimes I'll blow a bit of air in between the pipe and the inner tube to make it a tighter fit; sometimes I'll simply leave it open for 'fast work'. Regardless, when the inner tube is all lubed up this makes for some fantastic session.
One rather memorable session was last week on a new couch we have which has VERY thick cushions. I found that my tube could be placed vertically between two of the bottom cushions and I could lay flat face down on the couch 'inserted' and the tightness was fantastic. (I'd placed a few extra bands around the inside of the inner tube, making it a bit less stretchy in the middle). Some gentle thrusting at an exact right angle to my horizontal position was VERY unique indeed. The session lasted about a half-hour because I went very slowly. There was a rather intense feeling when I came because of the rigid 90-degree angle. It was almost too much in fact! I think I'm more used to cumming at a tighter angle to my body. Intense!
I've used my sleeve in some other configurations, such that I get some automatic action without any movement on my part. I'll post that in a separate story, as it's a good one.