This looks like a small Rubik's cube, but it isn't.
They are two cubes that can be placed together in a fascinating way. By unfolding one, the other fits in like a perfect puzzle piece, so that they can be folded together and the second cube has disappeared invisibly in the middle. Wonderful two-handed experimenting, trying, astonishing and conjuring.
Each cube can be transformed into two 12-point stars.
Watch the colored square and triangle sections move as it transforms from shape to shape.
How many different shapes can you find?