Muppet Fact #1251

Moppy (モッピー) is a Sesame Street Muppet who was created exclusively for Universal Studios Japan (USJ) for the park's tenth anniversary. According to the comic included in USJ's press release, Moppy was created from all the happiness that filled the park. Elmo collected this happiness in his bag and became luckier and luckier. Eventually, on the theme park's tenth anniversary, all of this happiness grew to create Moppy.

Source:

Universal Studios Japan. "Universal Studios Japan® to Open a Specialty Shop Featuring Moppy, a New Sesame Street™ Character, on Sunday, October 30." USJ Press release, September 27, 2011. https://www.usj.co.jp/company/company_e/pdf/20110927_e.pdf.