How I create a design inside a wet felted hat

In this video, I go through how I create a design on the inside of my wet felted hats. I use various types of wool roving and scrap wool yarn. The entire process takes several hours, so I've condensed this video by speeding up the time on some segments. I do make a mistake in that I forgot one layer of wool. 5 layers instead of 6 but the result was not significant.