Around the studio and theater, we are rarely without our water bottles. Most everyone has their own, and since they are such an indispensible accesory (and now are available in so many unique shapes, sizes, colors, and patterns) we could probably identify everyone's bottle if a "match the canteen to the dancer" contest were held.
Lately, Kleen Kanteen has become the bottle of choice. I noticed that Adrian and I had matching green ones-- his in a large grandaddy size to my little kid size. We set up a family portrait with another related pair the other day (Grace's is the one with the nifty sport top):
Soon, other drinking vessels in the room got interested and wanted their picture taken, too: