droplift
The opposite of shoplifting. To leave a product or item in a shop, rather than take one. It has been used by artists and musicians to promote their work for free, while some people use droplifting to make political or economic statements (for example, by altering a shop's products and then returning them).
Guerilla artist Banksy droplifted doctored copies of Paris Hilton's debut album in record stores in the UK. He changed the cover art and included his own remixes titled "Why Am I Famous?," "What Have I Done?," and "What Am I For?"
