4CubesFour parts (looking like a 3x3x3) connected into a single puzzle. The second (the other being an 11x11x11) collaboration of Tony Fisher with another designer.
Aleh's Minx IIBuilt from a megaminx this puzzle has six twistable sides of which not all allow 72°-turns.
All AroundA puzzle like the "Lord of the Rings":
"One Puzzle to rule them all, One Puzzle to combine them,
One Puzzle to to make them useless"
Alternating CubeA 2x2x2 which allows only clockwise and counterclockwise turn alternatingly.
Alternating SkewbA Skewb which allows only clockwise and anti-clockwise turn in alternating order.
AntiCubeA face-turning tetragonal antiprism.
ArleminxA hybrid puzzles which combines two seemingly incompatible puzzles.
Arrow PlanetA fudged puzzles which combines the moves of a bandaged 3x3x3 and a sliding piece puzzle.
Arrow Planet BaseA 3x3x3 in shape of a asymmetric cut sphere. It was made specifically to illustrate the Arrow Planet.
AstrolabacusA unique ball puzzle. Sold in small quantities online.
Bishop CubesA set of 27 interlocking cubes which is not scrambled by color but by shape.
Bishop Cubes (4x4x4)The bigger version of the Bishop Cubes. A set of 64 interlocking cubes which is not scrambled by color but by shape.
Bram's MagicSix ball connected in a loop. The moves defy everything you might know from twistypuzzles.