booby prize

/B UW1 B IY0 P R AY0 Z/
noun
  1. 1

    A prize or status, often unwelcome, awarded as a joke or disincentive to the loser of a contest or for poor performance.

    โ€œAt the end of the conference, they awarded him with a rubber chicken as a booby prize for complaining the loudest.โ€

Source: https://en.wiktionary.org/wiki/booby%20prize