I always like poking through the foil of a pill container – you know the ones: molded plastic on one side with individual indentations for each pill, and a layer of foil on top.
The foil is nice and pliable, but I’d never thought of making anything out of it. These pill-package foil earrings are a fun idea. The foil wrinkles in interesting ways. [Website in Polish; Google translated-to-English page here.]