1. Be sure to check what a scanimation is
here.
2. Upload a video of your choice — not a too long one; a few seconds is enough.
3. Choose your scanimation settings.
4. Scanimate!
5. Admire the result and try it out moving the grid both ways!
6. Download & extract the ZIP file.
7. Print your scanimated image on paper.
8. Either print the grid on a transparent film, or cut out the cutouts grid.
9. Have fun IRL!