4x4 (Crossover)A rebuilt Crossover puzzle with a custom scheme on the tiles.
AlgolA hard jumbling intersecting circle puzzle.
AruslokyTwo rotating circles - very similar to the Cohan Circle puzzle.
Awesome OctoRubik's like ring shaped puzzle. The puzzle turns the upper and lower half of the ring. The colors are separated in four sections.
Bandaged QuadFour intersecting circles rotated with the help of plungers restricted in their movement.
Battle GearsA puzzle with intersecting circles and bandaged pieces. Produced in low quantity in seven different variants.
Bram's SquareA puzzle which combines intersecting plungers with rotations of large portions.
Bubbles in a planeA 2D-puzzle that works only because it was fudged and still it demonstrates jumbling.
Buzzle Ball14 pieces rotating on a sphere divided in 3 (!) distinct layers.
Cohan CircleTwo intersecting circles. There exists a newer relative named Arusloky.
Colors CrossTwo plungers and one rotation used to move nine pieces.