They make a steel cage and also a plastic cage, Arundel Sport Bottle Cage, which is just as good as their carbon cages, see pic added photo of the sports.
some other sites
http://www.wisecyclebuys.com/waterbottlesandcages.aspx = Arundel Dave-O Carbon Bottle Cage Price: $44.95 Arundel Stainless Steel Bottle Cage Price: $19.95
http://www.competitivecyclist.com/ac...-cages.92.html Dave 0's are 50 each for 2 or more 47 each .... sports 15 each 2 or more 14 each .
http://www.westernbikeworks.com/sear...iewall=&cat=cg