Curvy Copter SkewbA puzzle with a hybrid axis system. It combines the cuts of the Curvy Copter and the Skewb. Its abilities to jumble make the puzzle very special.
DaYan Gem IAn edge-turning hexahedron transformed into the shape of a truncated octahedron which is an archimedean solid.
DaYan Gem VA mass produced F-Skewb in shape of a truncated octahedron.
Deep SkewbA reimplemented void skewb which makes visible its core which is connected to the red square.
DreidelmateA puzzle derived from the Master Pentultimate and the Dreidel Skewb. An edgeless Master Pentultimate.
Duo Axis CubeA cubic 3x3x5 moved into a pattern and modified back into cubic shape.
Duplex 3Two circles of marbles that would not intersect if it weren't for the twist of the Duplex puzzles.
Face-turning icosahedronThe first known face-turning icosahedron. The first version was made in 2003 completely made by hand and from scratch.