Fill some nylon stockings with raw tuna, tie them puppies around your waste, and jump in the ocean. It's free and you're bound to get a nibble sooner or later. If it's your dolphin bros, enjoy and take pics! If sharks, FUCK! but sill take pics.
That's honestly my best idea. I'm all tapped out. Unless you own 2 really long trench coats and 2 of you can balance on shoulders.