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Mr. Sparkle is a Japanese brand of dish washing and laundry detergent. It is a joint venture between Matsumura Fishworks and Tamaribuchi Heavy Manufacturing Concern.

While at the Springfield City Dump, Bart found a box of Mr. Sparkle detergent. He called over Homer and Lisa to look at the box, and they were all shocked that it had a picture of Homer on the front. Homer took the box to Akira at The Happy Sumo, who told Homer that it was Mr. Sparkle, and was surprised to find that the mascot looked like Homer. Homer later called the Mr. Sparkle Factory in Japan to ask why they were using his likeness on the box. He later received a videotape for American investors with a commercial for Mr. Sparkle included. The end of the commercial revealed the truth behind Mr. Sparkle: it was a merger of the companies Matsumura Fishworks, which had a fish logo, and Tamaribuchi Heavy Manufacturing Concern, which had a lightbulb logo. The two logos together made Mr. Sparkle, meaning the resemblance to Homer was a coincidence...