I stopped by Miss Autopilotpatty Poppy's Galleria on Kintyre to see the new set of artist exhibits.
One, in particular, was quite interesting, as many of the pieces were not static. The one below required a bit of user participation:
But note the two pictures below. The plywood cubes first face an empty frame...
...but ultimately reassemble themselves in the frame. (Still pictures don't do it justice.) Magic!