Leftover

A leftover was an object discarded by an individual.

History
In an interview hosted by Mickey for his website in early 2006, Henry Van Statten mentioned that the Gray Market was an underground trading scene for alien leftovers and curios, and he addictively collected said leftovers. (PROSE: )

Finding a Dalek trapped by fibre-optic cables in the Cloisters on Gallifrey, the Twelfth Doctor told Clara Oswald that it was "probably a leftover from the Cloister Wars." (TV: Hell Bent)