bath sponge vs towel

bath sponge

noun
  • A sponge, made from any material, that is used for cleaning the body while bathing. 

  • A commercially used species of sponge (porifer, invertebrate of the phylum Porifera) found throughout the Mediterranean Sea, Spongia officinalis. 

towel

noun
  • A cloth used for wiping, especially one used for drying anything wet, such as a person after a bath. 

verb
  • To dry by using a towel. 

  • To block up (a door, etc.) with a towel, to conceal the fumes of a recreational drug. 

  • To hit with a towel. 

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