puzzling to some-but collect them I do
SPHERE
CYLINDER
Bump Cheese
A bumped variant of the Cheese-puzzle. A six segment prism with one layer.
OTHER SHAPES
Rubik's UFO
An attractive little puzzle, possibly related to the legendary Rubik's Cheeze.
MOVING MARBLES
MOVING TILES
Gerdig UFO
Spin the top/bottom half to mix the satellites, then use the central plunger to flip one, two, three or four satellites over.
FOLDING
OTHER MECHANISMS