So I bought one of those grab bags from Orvis last year and I'm still trying to find uses for some of the stuff I got it in (gold foam, purple quills, among other things) but I'm still trying to figure out what one item is used for, because I've been drawing a complete blank. It's a thick, very soft, felt-like substance that gets progressively more orange as you look more directly at it and more yellow as you tilt it towards the horizontal. It's really bizarre stuff. Best way I can describe it would be if someone made a sheet of chenille. Can anyone tell me possibly what this stuff is and what's it's practical application at the tying bench?