From Muppets To MLB: Bonnie Erickson, The Phillie Phanatic And

TIL - Mascots the Phillie Phanatic and Youppi! were both designed by the same person, a former employee of Jim Henson named Bonnie Erickson. She also designed failed Yankee mascot Dandy

Bonnie Erickson - Wikipedia

Phillie Phanatic Lawsuit: Mascot's creators reach settlement with team - 6abc Philadelphia

Has the Phillie Phanatic Been Saved From Free Agency?, Nicole Bergstrom

Phanatic creators file counterclaim against Phillies over copyright - Philadelphia Business Journal

What is the Phillies' mascot? A history of Phillie Phanatic's rise as a Philadelphia sports icon

Bonnie Erickson, Muppet Wiki

Could the Phanatic leave Philly?

From Muppets To MLB: Bonnie Erickson, The Phillie Phanatic And Dandy

Legal dispute could make Phillie Phanatic a free agent – MATT VEASEY

Are the Philadelphia Phillies About to Change Hollywood's Future? – The Hollywood Reporter

Phillie Phanatic - Wikipedia