What a concept. I can throw a frisbee pretty far and with great accuracy so the next logical step is to use it as a weapon against defenseless animals. I'm thinking ducks and geese would be the easiest targets. Hitting them on the wing would earn you extra points. Squirrels might also be a possibility. Throwing into a large flock of starlings might be a good way to persuade them to leave.
Weaponized frisbees would be made of aluminum or titanium, or at least be reinforced with such metals. Is there a DARPA program for these?
This idea really captures my contradictory nature.