A TV commercial helped Slurpee sales soar. Slurpee sales were idling at an average of 50 per store per day until 7-Eleven launched its “Strange Things” series of television commercials. Some Slurpee cups were made from waveforms of mating whales. Adults used to be ashamed to drink Slurpees. In 2011, to celebrate Slurpee's 45th birthday, 7-Eleven decided to pioneering a new method of drink delivery by introducing a highly innovative dual-flavor Slurpee.