I think I cracked the code. Coca-Cola has
gotten involved with FIRST and Dean's company, DEKA. There will be Coke machines at either end of the playing field. Your robot will have to insert "change" (get it?) in to the coin slot, make a selection and lift the chosen bottle/can out of the receptacle. Then you open the bottle or can & pour it's contents into a reservoir on your robot. (
Side note: if the machines only serve bottled water, there's your long-anticipated water game). Then the bots place the empty bottle/can in the RECYCLE BIN! An added benefit is the exhausted drive team can drink the contents of the reservoir at the end of the match.
You're welcome.