Commercial for Mars brand bars; an old-time prospector and his donkey are in the candy aisle of the grocery store; the prospector invites the viewers to send 25 Mars brand candy bar wrappers to the company to receive a $2 refund; candy bars include Mars, Three Musketeers, Snickers, and Milky Way; prospector: “mail in 25 wrappers and get back $2!”; donkey chimes in; “it’ ain’t hay!”