A drink that was featured in even President Obama’s joke (‘Slurpee Summit’), was also invented by an accident. An owner of old Dairy Queen, Omar Knedlik, was improvising as his soda fountain broke and he left the soda bottles in the freezer to stay cool. However they turned quite slushy which customers actually loved! He built a machine that would produce a slushy soda drink by mixing some carbon dioxide, water and flavourings. He patented the machine holding a competition for the name and soon ICEE started to be sold to convince stores. It wasn’t until 7- Eleven that the new name Slurpee came across to make it specific to this chain of shops. It was meant to describe the sound made while drinking it through a straw.