In July 2007, convenience store chain 7-Eleven converted 11 of its stores in the United States and one in Canada into Kwik-E-Marts to promote the release of The Simpsons Movie .  The locations of the renovated Kwik-E-Marts were: Bladensburg, Maryland /Washington, .; Burbank, California ; Chicago ; Dallas ; Denver ; Henderson / Las Vegas ; Los Angeles ; Mountain View / San Francisco ; New York City; Orlando / Lake Buena Vista, Florida ; Seattle ;  and Vancouver / Coquitlam, British Columbia , Canada.  These 12 locations, as well as the majority of other North American 7-Elevens, sold products found in The Simpsons , such as " Buzz Cola ", " Krusty-O's ", " Squishees ", pink frosted "Sprinklicious doughnuts", and other Simpsons -themed merchandise. The Squishees were Slurpees that are sold in special collector cups and the Krusty-O's were made by Malt-O-Meal .  The promotion resulted in a 30% increase in profits for the changed 7-Eleven stores. This can be seen during the opening of The Simpsons Movie .