[Joe J.]

I like the idea of footballs as the game pieces:
They are:
A. small enough that they can be herded by the robots
B. large enough to make for easy field cleanup/reset
C. very durable
D. fairly cheap (name brand ones look to be about $15 off brand one could be less than $10
E. an odd shape FIRST hasn't used before

I'm seeing a game like this:
Two alliances red&blue each has 2 or so goals Theres X red footballs and X blue footballs in some kind of hopper loading system and the robots either have to heard them to the human player or the human player to the robots. As for the scoring, You get 5 points per football of your alliances color in your goal and 3 for each football of your opponents color in your goal. (5 x 3 = 15 *)
theres also several lets say 5 green footballs that up off the ground and during auto mode the robots had to find these green footballs and score them in the goals, they'd be worth maybe 15 points(*)

I know kind of sounds like 2004 but it would really depend on what the field looked like.

(*2006 game is FRC's 15th, the clue is structured into 3 lines and contains the number 5)

I remember reading something about Montana's grassy plains and the flag has a grassy plateau on it maybe the platform (if there is one) has a surface that is green, artificial grass maybe (a lot of football fields are surfaced in artificial grass, including the Georgia Dome)