Naef - Modulon Created in 1984 by Jo Niemeyer in Switzerland, the Modulon is a wood block toy divided according to the golden ratio. It looks like part of the De Stijl movement or something that Gerrit Rietveld would design or a Mondrian painting.
Large Swivelling Wooden Labyrinth by Ginga Kobo Toys, Japan - An immense spaceship labyrinth with a diameter of 120cm. The marblesque 3 cm. large glass balls roll around circling towards the center. Aim for the chute which leads into the mouth of the volcano! Creative obstacles block the way! Great to encourage cooperative play, as 2 or 3 kids can work together to conquer the labyrinth.