Dinosaur Novelty Pens in four species

A dinosaur pen for a dinosaur fiend.

From left to right, these are Stegosaurus, Brachiosaurus, Tricepterops and Tyrannosaurus Rex (although as the only example to have been found was a female, perhaps it should be Tyrannosaurus Regina); the tail forms the barrel on each one. Apart from T-Rex, they can all stand on all fours.