Since this is still only 2 pages long, I am tall and could use one of the traffic light spotters I figured I would put my pick in.
Another drink holder (I sense a trend here

)...
I have a bunch of them that I use in the Hafi, the Mog, boat and some new ones for the Pinz - they mount anywhere and adjust to various sized cups/cans/bottles (both in width and depth - good for wife's coffee!).
Has neoprene inside so it keeps everything cold/hot a little longer and is gimbaled so it just swings in the wind and stuff does not spill everywhere!
Mounts to tubing, glass or anything else as it has a great Velcro strap system and a hard mount.
Liquid Caddy $20
http://www.kasswinns.com/liquidcaddy/