Fraggle Rock S03 E20 The Incredible Shrinking Mokey

Mokey and Red are putting on a puppet show and on their way to the production, Mokey hears the cries of a strange creature named Begoony, a magical fluffy critter who clings himself to Mokey and wants all of her attention. But when Mokey's torn between helping Begoony and putting on their show, Begoony puts a curse on her that makes her shrink, and then Begoony places her in a dollhouse. Mokey must find a way out and teach Begoony what being a friend means.