Ephemera [ih-fem-er-*uh*] (singular: ephemeron), n., 1. anything short-lived or ephemeral.
2. Items designed to be useful or important for only a short time.
Ephemera originates from the Greek, meaning things lasting no more than a day, and is usually defined as any written and printed matter that was/is not intended to be retained or preserved...at least from an archivers perspective. From a mixed media artist perspective? Its a whole different ballgame! Old letters and envelopes, postcards, bingo cards, tickets and more turn into a background for a painting or drawing, a layer in a collage ... wonderful building blocks and embellishments to your mixed media projects.