I am one of the few privileged to have seen "Lobsteroids". There is actually only one lobster claw that someone waves from out of camera view occasionally - very low budget. What I wouldn't give to own it. Musta have been 15' long.
My favourite scene is at the end. The lobsters have been drawn to a truck carrying rock musicians who lead it to a bomb (atomic?). The bomb explodes and it rains chunks of lobster so everyone melts down kettles and butter and settles in to a lobster boil on the beach.

If you have not seen Johnny Depp in the Astronaut's Wife, trust me. it is very bad. So bad it's good. And readily available at your local Blockbuster.

But I still love Attack of the Killer Tomatoes and The Maze (my uncle the frog).