bath sponge vs tea 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. 

tea towel

noun
  • A cloth, made from cotton or linen, for drying dishes and glassware. 

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