I made this cake a couple of weekends ago. The bride wanted her cake to look like burlap. I had the hardest time coming up with an impression mat I liked. I finally wound up using the grippy shelf liner that I use under my cakes to prevent them from sliding as an impression mat. It looked way better than the ones I bought!
Jenniffer White, Cup a Dee Cakes - http://cupadeecakes.blogspot.com