Not something you do every day. As part of UnConvention Factory, there was an art project in which ten people’s faces were made into a sort of circuit board mural thing. Still not quite sure why, but it was very cool.
Weird experience, of course. My face was covered first with that stuff that dentists use to take impressions, and then with plaster. Only my nostrils remained uncovered. So I could breathe, obviously.