Here is where I take the opportunity to show off some of the toys and paper models I have collected, that are only tangentially related to tabletop theater.
Like the two matchbox size theaters, this Magic-Puzzle comes from the German publisher Wetzel. Taking inspiration from Magritte one of the most famous paintings in his "La trahison des images" ("The Treachery of Images") series it was designed by Richard Wetzel.
The picture above of the matchbox puzzle's cover comes from the Moduni website. The pictures below are are of my own Magic-Puzzle.
The puzzle is composed of five cards. Each card has a different cut out silhouette images. The profiles on the cards are distorted to the extreme and I'm hard pressed to say that they are all actually faces.
By stacking the five cards together in the correct order the negative space creates the image of a pipe.