for the scoring objects, i would suggest using cylinders.
i also have a unique idea for scoring. instead of assigning each scoring object (hopefully cylinder) a certain point value, why not make the score the square of the number? 1 cylider would get 1 point, 2 would get 4, 3 would get 9, 9 would get 81, etc. this would make the games a whole lot more exciting and hectic
for the way objects are scored, i think the best way is to have a scoring zone on the field which is slightly lowered from the rest of the field