Move your mouse around to rotate the 3D Cube.
Huge thanks to @PinkyPepper for her projects with 3D models. We create costumes showing slices of the object from back to front. The costumes are rotated towards the mouse, then stamped many times, starting with the backmost costume, to create the 3D effect. The 3D Cube is stamped using only 2 costumes. (I must make the original costumes a bit bigger in the project to see if those lines then don't appear on the cube faces).