I did a bit of research on just what this dreaded Terror Fish is, and here’s what I found. It’s a mechanical fish from some really old TV show from the sixties called Stingray.

A World Navy submarine is mysteriously destroyed at sea by what appears to be a mechanical green fish manned by two amphibian creatures. As occasions like this seem to becoming a regular occurrence, Sam Shore, Commander of the World Aquanaut Security Patrol (WASP) is ordered to investigate.

I believe this is the mechanical fish in question. If you can prove me wrong and this is something else entirely, please do tell. But I’m sticking with my explanation for Terror Fish.

How it ended up on this poor boy’s sweater is another question entirely.