I think I may have found a way to successfully achieve this though the general idea has been seeded plenty of times elsewhere.
It is really a modified version of the autoads which goldmember and a few others have brought to recent attention.
I have the constructed my own makeshift version and so far it would comfortably give at least 2lb constantly, is completely concealable and you can piss with it on. It looks a little bit like Ronnie our german friends training pics, but the equiptment is a little more refined and it looks a lot more comfortable. I wear it whenever I am out and about usually take the loop part whenever I take a piss, maybe give a minute or so to recirculate then put it back on. I wear it for hours on end, no trouble and even chuck it on in between
hanging sets as it gives a different stretch.
In brief it simply involves the following at whatever the equivalent of your hardware superstore equivalent is:
a) a good thick whole length wrap of [words=http://www.mattersofsize.com/forum/showthread.php?44-Ace-Strapped-Jims-Joint]ace[/words]. Wrap tight but not too tight as this is what will stop you pissing, takes some trial and error to get used to.
b) a luggage
strap to be tied just under knee or heavy duty grip
strap (ie., for strapping surfboards etc to your car roof rack)
c) an adjustable tension cord/octopus
strap - it must be adjustable. This is important for tension and quick release. You thread this through the luggage
strap and using its two plastic end hooks attach it to a makeshift noose placed at the end of the stretched penis.
d) a small strip of velcro to be placed about an inch below the head of the penis. This is used to stop (e) the noose (see below) slipping off under higher tension.
e) the noose component of the max xtender or equivalent (ie., see GMJ's recent thread on how to make one - ie., it is really a heavy duty lace thread through the adjustable tension cords which can be found on rainjackets or bags).
If I had a camera I would put up some pics, alas I do not (if you are reading this father christmas, you know what I want. I wasn't a good boy this year but I added around 3/4 inch to my knob, that has to count for something).
The total purchase cost of the equiptment needed is round AUD 20.00, obviously less for you fellas in the states.
Hope this helps fellas, any qs feel free to ask.