Robbie Mackinnon of Toronto makes art out of Rubik’s Cubes. Hundreds of Rubik’s Cubes. He buys them at dollar stores, rearranges them enough to get one side the way he wants it, and stacks them on very sturdy easels. More of Mackinnon’s work here, and some work by other artists here.
Of course I’m looking for a sudoku connection, but Rubik’s Cubes have six colors and sudokus have nine. A Rubik’s Cube can be rearranged and it’s still a Rubik’s Cube, but if a sudoku is rearranged beyond a certain point, it’s not a sudoku any more.