decorative vs for show

decorative

adj
  • That serves to decorate 

noun
  • A plant, tile, etc. intended for use as decoration. 

for show

prep
  • intended to be seen but not bought or used 

  • done in an insincere or affected manner in order to impress others 

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