Fingerprinting Misc

These are the other ideas that don't have references:

Using thumprints or the top of human heads to form the lines of a fingerprint.

 Idea on mutation of words into lines or vice versa within the fingerprint.

 Mr. Potato Head.

 Repetition of arrows from the white board and (the road of) ethics to form the lines of a fingerprint.

Using thumbs to black out the frame for a sour-style sequence. Illustrated by an animated .gif of Chengyi doing his thing.