You can use your imagination and simple lines for a start — thanks to the folded paper, the result will look nice and symmetrical anyways. For more advanced patterns, you can search on Baidu for paper ...

Thicker notecards and photo paper, however, means the surface area simply won’t cut through much. But the closer a paper is to 65 micrometers wide, the more primed it is for a cut.

Cutting edge: A 3D-printed “papermachete” based on the experimental findings could cut through apple, banana peel, cucumber and even chicken (courtesy: S. Arnbjerg-Nielsen, M. Biviano & K. Jensen, ...