The Big Idea Box / Happy Mim Day

S1 E103: The Big Idea Box- Kate’s dad gives her a big empty box to play with! In Mimiloo, Tack can’t think of any new inventions—his Big Idea Board and his Big Idea Box are empty. To help Tack get out of his inventing slump, Kate and Mim-Mim have to help him imagine all the things that his empty box can become. / Happy Mim Day- Kate discovers that Mom finished sewing Mim-Mim on the day Kate was born, so they share a birthday! In Mimiloo, Kate and Mim-Mim secretly set out to throw each other surprise parties. They each try to make it the very best party for the other, which means altering their friends’ party plans, disappointing their friends and making a gigantic mess!