Two "Einstein Shapes" - Hat and Turtle Einstein shapes tesselate infinitely without repetition (google it!). Note: You need the original and the mirrored orientation for infinite tessellation. The "Dbl" versions of the svg files contain both original & mirrored. If you want include the scoring lines you can cut+score on one side, then flip and score on the other (of course you will need to pin your material to the laser bed so it doesn't shift.)