We were recently kayaking on the St. Louis River when I thought about an Asian Carp coming out of the water and slapping me in the face, ewwwww! I was assured that wouldn't happen, at least yet. They haven't made their way up this far, but they're being proactive to make sure they don't and your idea could "net" (get it?) some cash.
"If you believe that, I have a bridge to sell you"; That trite phrase has been around for centuries. Well - if you switch out the word "bridge" for "lighthouse", it would be true - as the United States Coast Guard gets ready to get rid of the lighthouse that marks the entry way to the Port of Superior.