KITS is an acronym for 'Knit, Invent, Tinker, and Sew'. Hobbyists' buys refers to the items that hobbyists purchase in order to pursue their hobbies. KITS are items that hobbyists may buy in order to knit, invent, tinker, or sew. These items can range from yarn and fabric to tools and machines. Hobbyists may also purchase books, magazines, and other resources to help them with their projects.