Make your own tinfoil portraits/sculptures. You could buy face masks and give students tinfoil. I think this would work. Would probably look even better on a black canvas or cheaper option, black card.
PULL by Kate Callan. paper, string x Pull contains eight explorations of string formations when fully open. Some strings continue through the pages making it impossible to view more than one page at a time.
Lisbon-born sculptor David Oliveira creates delicate figurative sculptures using wire that’s formed to look like manically drawn ink sketches. Some pieces are hung by invisible filament creating the illusion of hovering in place.