This is me (female subject) saying “både” (“both”). The sequence is an excerpt from a 20 second X-Ray film registred at the Danderyd Hospital in Stockholm in March 1997.
In this sequence I noticed that the lips form an interesting image as the mouth opens; I assume it’s from lipstick of uneven thickness and application, which can be seen when the mouth is fully open. I wonder what kind of heavy elements are in there that help screen higher-energy photons. The effect is absent for the male subject (and apparently “pion” in Swedish means “peony” rather than “meson made of up and down quarks.” Silly Swedes.)
If it was pearlescent lipstick, bismuth oxychloride is a candidate. Go for the gusto with precipitated basic lead carbonate. Or flake out with the default,
http://www.eckart.net/383.html