TIL Clowns have a special way of "copyrighting" their particular facepaint by painting their likeness on eggshells.

https://www.smithsonianmag.com/travel/gallery-london-houses-dozens-clown-egg-portraits-180968914/

https://www.reddit.com/r/todayilearned/comments/151ef31/til_clowns_have_a_special_way_of_copyrighting/