kit violin vs packaging

kit violin

noun
  • A very small long-necked violin that came in a variety of shapes and configurations, meant to be carried in a pocket and intended for dancing instructors to carry to accompany their students. 

packaging

noun
  • The materials used to pack something. 

  • The industry that produces such material. 

  • The manner in which a person or product is promoted. 

  • The act of packing something. 

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