ephemera

noun6

1. •
   Manmade objects that are short-lived (under usual conditions), usually because their design intent is to be inexpensively made and thus affordably bought, a goal that often is an engineering trade-off versus durability.
2. •
   Especially, such objects that are collectibles, such as (originally) cheap publications (e.g., pamphlets, brochures), single-use packaging from packaged goods, and giveaway or throwaway trinkets.
3. •
   Published single-sheet or single-page documents which are meant to be thrown away after one use.
4. •
   Transitory audiovisual matter not intended to be retained or preserved.

   • I have no interest in the sensational ephemera of the Press. — 1923
5. •
   plural of ephemeron
6. •
   A mayfly (genus Ephemera).

   • Ephemeras are abundant and they are preying upon surface life. — 1903