Oscar Reutersvärd’s Möbius Strip

Origin
Oscar Reutersvärd was famous for drawing impossible figures, geometric figures that tricked the eye but are physically impossible to build. His most famous works are the Penrose triangle and stairs.

A Möbius Strip is a 3 dimensional shape with technically only one side. It is usually a ribbon of flexible material, which is twisted once and then the ends connected. If one were to pick a point and start making a line from end to end, they would end up in their starting point, proving it is only one sided.

Effects
Made out of tin, it allows for the formation of impossible objects and formations when shook. It will cause damage to the eye and visual cortex when its effects are stared at and almost blinded Escher when he went out to snag it.

It has now been integrated into the Escher Vault, being used alongside M.C. Escher's Mirror Ball and the Cretan Labyrinth Archway to maintain the complexity that is the Escher Vault. Before its implementation, the Vault was known to suffer semi-occasional glitches, where the Vault became navigable enough to not need the glasses. With its addition, it seems to have helped smooth out that issue and helped the Vault distort space and create its labyrinths even faster than before.