The Simpsons their advertising. As a promotion for "The Simpsons Movie", twelve 7-Eleven stores were transformed into Kwik-E-Marts and sold "The Simpsons" related products. These included "Buzz Cola", "Krusty-O" cereal, pink doughnuts with sprinkles, and "Squishees". In 2008 consumers around the world spent $750 million on merchandise related to "The Simpsons", with half of the amount originating from the United States. By 2009, 20th Century Fox had greatly increased merchandising efforts. On April 9, 2009, the United States Postal Service unveiled a series of five 44-cent stamps featuring Homer, Marge, Bart, Lisa and Maggie, to commemorate the show's twentieth anniversary. "The Simpsons"
The Simpsons "The Simpsons", which its creator Shalva Ramishvili has acknowledged. "The Simpsons" was the Fox network's first television series to rank among a season's top 30 highest-rated shows. In 1990, Bart quickly became one of the most popular characters on television in what was termed "Bartmania". He became the most prevalent "Simpsons" character on memorabilia, such as T-shirts. In the early 1990s, millions of T-shirts featuring Bart were sold; as many as one million were sold on some days. Believing Bart to be a bad role model, several American public schools banned T-shirts featuring Bart next to captions such as "I'm