A seagull, a 40 inch softshell turtle, several alligator snappers, a few rods, a catfish on a fly , several newspapers, a padlock, an old tacklebox...
but the best of all was when i snagged some fishing line that i pulled up to find attached to a jig which was still in the mouth of a 4 pound bass my friend had lost earlier that day ;D ;D ;D