Rubik's Cube shape faces
thingiverse
You can stick them on using double-sided tape. As a special move, I scrambled my cube beforehand with the following algorithm: F2 L2 B2 L2 D' U' B2 D2 F2 R2 B' F' R2 D U'. Then, I picked one shape for each side and printed the faces in the color of the flat faces beforehand. So I built a Cube with two solutions: Solve per Shape and Solve per Color.
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