rainstick

/ˈreɪnstɪk/

IPA: /R EY1 N S T IH1 K/

noun
  1. 1

    A hollow tube partially filled with pebbles or beans, and with small pins or thorns arranged helically on its inner surface, so that it produces a rain-like sound when upended.

Source: https://en.wiktionary.org/wiki/rainstick