The pattern for my 'Caravan Bag' could be easily adapted to make a 1950s 'Ice-Cream Van Bag' or elongated and made up in psychedelic fabric to make a 1960s 'Magic Bus Bag'. For inspiration check out Google Images.

http://images.google.co.uk/images?gbv=2&hl=en&sa=1&q=1960%27s+magic+bus&aq=f&oq==