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Six-Sided: Cube (Shape Changing)
Stone BlocksA stone-like textured spray paint applied to a Bump Cube.
Super Octo CubeA more advanced version of David Pitcher's OctoCube.
Super Square-1A new challenge to the Square-1 / Cube 21.

Tera HexaminxA Teraminx CADed into the shape of a cube.
Thomas cubeA 2x2x2 tilted within its solid.
Thomas SkewbAn "axised" skewb.

Thorny CubeA Circle Mixup Cube.
Total Master CubeA Masterball with extensions to give it the shape of a hexahedron.
Trapezoid Edge CubeA combination of Slice cube and Fisher Cube.

Trifurcation CubeA mass produced cube with 24 axis in a jumbling only axis system.
Turbine CubeA heavily bandaged Square-1 designed from scratch.
Twins Flowers CubeA Kilominx in shape of a cube with two turnable sides.

Twisty BurrA puzzle consisting of an inner 2x2x2 puzzle, and an outer shell burr puzzle.
Twisty Slidy CubeSeems to be a 2x2x4 but it allows the move of Sliding Pucks.
Two solutions Mirror BlocksA sticker variant of the Mirror Block puzzle which leads into a puzzle with two solutions.

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