A puzzle using Moebius topology and three-dimensional construction to make solution more challenging by preventing the player from seeing all possible layouts at any one time. The preferred embodiment of the puzzle challenges players to solve a maze when part of the maze will always be concealed by the current viewing surface, as the internal and external surface are both contiguous and identical.
A ring-like article of manufacture capable of being worn as jewelry such as a ring on a human finger for adornment, having a triangular cross section throughout its circumference, wherein the sides of the triangular cross section are formed by a single continuous, endless surface, and the vertexes of the triangular cross section are formed by a single continuous, endless ridge that preferably acts as an internal thread that is capable of being used to screw or unscrew the ring when worn on the finger.
