I did some digging and came up with some more fun crap. McGlashan Enterprises did indeed do shooting galleries at Disneyland and Walt Disney World. Most notably the original Frontierland gallery at WDW in which folks shot real lead balls at steal targets. "Eyes and Ears" (cast member newspaper) once reported that McGlashan was also working on a system in which the rifles would fire ice pellets! Eliminating the use of lead. History tells us how that panned out.
My good friend How Bowers sent me the information from a previous listing of the Fiesta Fun Center arcade on Ebay. The concept art confuses me. It shows the Disney props as though they were McGlashan stock gags. ???? They also show things that are obviously from Disney but I don't remember them. They also show the Sea Serpent gag which proves I'm not crazy.
There are two different versions of the same scene included in the artwork. Who knows how things get shuffled around and sold off. One could be the original and one could be from somebody's nephew. All I know is the picture above shows what I PERSONALLY would buy is I had over 300,000 dollars to waste on a shooting gallery.
The top one has more heads in it. It even has a chipmunk head in a knight's helmet. It has the Sea Serpent too. It also comes with a TIKI BIRD!
So far there are NO known pictures of the Sea Serpent. This is where I last saw him, in the dirt, at Mystery Fun House in 1992. Still no sign of the wizard and his book of spells.
Thank you, How Bowers, for these images.