Thought of originally as "mistakes" in fabrics, are now known as what?

well I ain't that something

When my used to quilt, she called mistakes “Hopi”s because she told me the Indigenous Hopi tribe had a theory only God is perfect- and making a perfect quilt isn’t possible nor should it be done- so having a mistake isn’t bad. ❤️

A new word for me

Great scrabble word.

I never knew there existed a word called"slub"