Hang vs clacker

Hang

noun
  • A musical instrument invented and built by PANArt Hangbau AG, somewhat resembling a steelpan. 

clacker

noun
  • Any device that makes a clacking noise. 

  • The anus. 

  • A percussion instrument that makes a clacking noise. 

How often have the words Hang and clacker occurred in a corpus of books? (source: Google Ngram Viewer )