Björn contributed a hand-knitted Pippi Longstocking sweater to the auction for the Swedish charity event Musikhjälpen (Music Aid).  Although the video shows him knitting, it's highly unlikely he actually did!

The sweater sold for 30,500 SEK in the auction which took place on Swedish online auction site, Tradera. All proceeds from the auction went to the charity event, which in 2022 raised money for "A safer childhood for war refugees".