Originally Posted by DCCommuter
Minoura makes a clamp for mounting a water bottle anywhere on the bike (the BH-95) that is very handy for mounting lights. You used to be able to get them from Nashbar for less than $4. Unfortunately, like all useful products it has been discontinued.
The nordic web site may still have 'em. They have other clamps also...check 'em out!
http://nordicgroup.us/cageboss.htm 