I found a great place for sisal cloth, and it’s really cheap too, 2.49 for an approximately 56”x36” piece.
28 x 36 Used Sisal Coffee Bags [UBCB-SISAL-28x36] - $2.49 : BurlapFabric.com, Burlap for Wedding and Special Events
Granted probably going to have to wash the coffee smell out of it but...