A friend of mine just had to have a revolving mat. We saw the price and thought that could buy a lot of fabric. So I took a plastic lazy suzan I bought at the thrift store for .50 traced it on one of those foam locking blocks that go on the floor used in childrens play rooms also found at the thrift. Cut it out with a craft knife,pressed it into the lazy suzan so that the surface was level. Then with craft glue I glued a think card bourd on it. She can place her mat on it and it works great. being able to remove the mat allows us to change mats and packs away easily. You would need a larger lazy susan for the 24x36 mat.
All of this took less time then going to the store and was less than $2.
Have fun!
Christina (chrissy)