Bows and arrows are not illegal here, and that seems to be a better alternative for many. I might invest in a good crossbow. No permit required and there are no "no discharge" laws here. Funny how they don't have a problem with the bow and arrow but have a cow over a slingshot.
In another club I used to belong to (Ramapo mtn ARC) they had one or two guys who were experts with a fishing pole. They were able to get the lead sinker up so high with just a fishing pole and casting reel. Field day was perhaps more entertaining watching them do that than actually operating.