Rarity said the gold silk took forever to make. I was thinking don't worms make silk? So I looked it up: https://oureverydaylife.com/how-is-silk-made-into-fabric-12209883.html Yeah, that's a lot of work. 

The girls are a "handful"? 

Sweetie Belle's singing is awesome. And her old squeaky voice.  And the first time for Fluttershy's squee.