www.sutherlandfelt.com I bought a large piece of felt from here. I covered the top of a dresser in my sewing room to use to press on. I also bought a smaller piece to keep on a small table next to my sewing machine. I love it. Someone on here suggested this site. I just sent them an email of what I wanted the felt for. They quickly told me what I needed and the price. It costs much than the pads in the LQS>

Sutherland felt
 

Hello, I was wondering what felt to purchased from Sutherland for your pressing mat. I looked at the white and eco-wool and received samples to test again my pressing mat I purchased from the local quilt shop. thank you

I have bought a second hand wool blanket for 6$ at my local Salvation army store. It's those heavy and scratchy army type blanket from the 1960. It's felted wool, very thick. I've covered my regular iron board with it. It's perfect!

I made my own by crocheting it with wool yarn, then washing in hot water, etc. If anyone is interested in the instructions, I can post the link. Mine came out about 1/2" thick.

I would LOVE those instructions!

Me too! I'd love those instructions.

I used a piece of my favorite, old, worn out, wool blanket for my mat. I've used it for several years now and so it sort of felted on its own, with the heat and steam from the iron. When not in use, I just fold it up. I've also washed it in cold water once. It came out a little wavy, but after pressing it, it flattened back out and was fine. Basically, it was FREE. Plus, I can still enjoy a little part of that beautiful blanket.