Everybody wants to pick this up and try to open it. Printed at .2 mm height in PLA. I did several prints in solid colors, then started using a different color filament for the first 10 layers to put a thin band of color around the base. If you want a cheat sheet on how to run the maze, look at the second picture. I took 6 pictures of the maze and stitched them together. EDIT: With Christmas coming up, my wife wanted 4 of these in silver for nephew gifts. I bought a roll of Arctic Silver from Cubicity. http://www.cubicity.com/ The filament has quite a bit of reflective shine and was perfect for the project.