Found all the usual, cig butts, hooks, lures, etc., but the most amazing one was a halibut that had six full sets of octopus beaks in it. I know they eat octopus, (that's what we used for bait fishing them commercially), but these were from really, really BIG octopie, and the halibut wasn't very big. It had round pieces of skin just hanging in several places. Apparently from the fight before the feast.
Also caught a couple salmon (commercially in AK) one that had swam through two of the six holes in one of those plastic six pack holders. Then it grew until the plastic rings went through the middle of the fish. One was through the stomach area, the other up towards the gills. The other one was a big coho, that had a huge o-ring that had done the same thing. Just like a tree will grow around a fence wire. Pretty weird looking. Amazing that they could survive.