ANAMORPHIC

DESIGN

Get a mirror and rotate your figure and look at the images on the mirror.

SIERPINSKI TRIANGLE

3D fractals

SNOWFLAKES

There are many different snowflake designs available at thingiverse.com

MOBIUS STRIP

3D model of Mobius

MAZES

All you need a little steel ball or a piece of string to play these mazes.

TESSELLATION

Escher's famous reptiles

PYTHAGOREAN

THEOREM PUZZLE

Get the shapes into the other squares . to prove the theorem.

GOLDEN RATIO

A 3D model to show golden ratio. Who knows maybe one day you can build the real ones..

PERSPECTIVE GAME

Design a shape so that it can fit into a circular, square and a triangular hole.

PLATONIC SOLIDS

All platonic solids as well as the Archimedean ones..

REULEAUX 

TETRAHEDRON

Solids with constant width

HELIX PENCIL HOLDER

A cool pencil holder - print two as the top and bottom so you can rotate ..