Earlier today I went all that way to Haarlem to buy new felt. The webshop www.meervilt.nl is open once a month, every 3rd Saturday of the month.
It was nice to literally look and feel the (high) quality of the products they offer. I run far above my initial budget, but also bought some special felt to make some X-mas presents (iPad sleeves for a couple of tablet lovers)
I have now a very good 100% natural material. But everything comes with a price: this felt is 50% more expensive than the acrylic mixed version I used to buy (and double the price of the cheap acryl only version). My products will become a bit more expensive, but we now have 100% pure wool.
One day I will find a way to replace the polyester filling with a natural alternative.