Many different categories to look at here

IMPUZZABLES
CRAZY CUBE
IQ CUBE
NZ PUZZLE
MAGIC CUBE PUZZLE
CUBOIDS
SNAFOOZ
SNAFOZ II
SNUZZLES
PIMLICO PLUMBERS PUZZLE
4 X 4 FOAM PUZZLE
5 X 5 FOAM PUZZLES
WOODEN SNAKE PUZZLES
PLASTIC SNAKE PUZZLES
PUZZLEMAN
THE BLOCK
PYRAMID PUZZLES
2 PIECE PYRAMID
CUBES GEORGE POMPIDOU CENTRE

Goliath rare £6. Barrels common £2

These are some puzzles I made of the Hinge puzzle invented by Storer.

More puzzlemen. I am trying to find out how many different types exist.