This is the Helicopter Skewb puzzle, which is a combination of the Skewb and Helicopter Cube puzzles. This puzzle has two very unexpected properties: it is possible to turn the Skewb puzzle by 60 degrees and still make Helicopter Cube moves, and it is possible to jumble the Helicopter Cube and still make Skewb moves.
By using these and normal moves, it is possible to scramble this puzzle in to very hard to solve shapes. However, once the puzzle is restored to a cube, you need at most one Skewb tiwst to correct the corner orientation. It can then be solved using only Helicopter Cube moves.
This puzzle has a mechanism that builds a Helicopter Cube on top of a spherical Skewb core. It rotates very smoothly and is perfectly stable.
Unfortunately, I messed up on the sticker template so the stickers look kind of weird. Using regular Cubesmith stickers has solved the problem and the puzzle now looks as good as any other Helicopter Cube.
This puzzle can be bought as a DIY kit from my puzzle shop. A DIY kit contains just the 3D printed pieces needed to build the puzzle, you will need to supply your own stickers and screws, springs and washers (usually M3 size). For an additional fee, I can sell you an assembled and stickered puzzle. Contact me at firstname.lastname@example.org for this service.Click here to buy your own Helicopter Skewb puzzle kit from my shopBACK