The Beatles made history in 1965 as the first pop group on a metal lunchbox, per the Smithsonian. Aladdin Industries’ aqua-blue “blue” lunchbox and matching thermos, produced 1965-66, used Dezo Hoffmann photos reworked into embossed portraits by artistic director Elmer Lehnhardt. A vinyl “Brunch Bag” alternative and a rival Air Flite version also hit shelves — but the original metal-and-thermos set remains the holy grail collectors chase today.