Of course if you are as crafty as David (He's like Macgyver), you can make your own tube (it is a bitch to get the flair on the bottom). Here is a thread on Newart that is all about DIY penis pumps. Good Luck!
The DIY pump master thread
Thanks, Tripod.:biggrin1: Actually, I am going to be experimenting with a technique to make the flares as well (note, the bottom flare, NOT a flared cylinder. I think most flared cylinders have become kinda passe`, anyway, haven't they?). Now that I have a small lathe, I should be able to turn the flares myself out of plastic, and simply glue them on the cylinder bottom, or make a mold out of wood, and cast a mold,, then cast acrylic around the cylinder. Engineer+tools+material+imagination= dangerous man.:biggrin1:
Did I mention I had designed and built a variable cycle system as well? I can vary the vacuum levels, and the on and off cycle times, as well as the rate, for applying the vacuum. This allows continous fresh blood flow, similar to that one I can't remember the name of right now, that costs a fortune, and does the same thing with a mechanical system--only the cycle isn't variable. I've also considered a micro-processor contrlled system, that could have different types of "excercise" programs loaded to it, but that's down the road... I obviously need a life..