The graphic on the lid mimics the digital "Time & Temp" street signs that banks across America rushed to install outside their branches during the late 1960s. Before smartphones or dashboard clocks, these giant flashing signs were a massive public relations tool. Banks capitalized on the trend by handing out miniature plastic replicas of their street signs to customers as promotional piggy banks. The most famous and largest iteration of this institution—HomeFed Bank (originally known as Home Federal Savings and Loan Association of San Diego)—officially went out of business on July 6, 1992.

At the time, its collapse was a massive national headline because it was the largest savings and loan institution failure in United States history up to that point.