I just made some of these myself... purchased an 8' length of cove trim at Lowe's for $11 and change... cut 4 18" strips and 2 12" strips. Cove round doesn't need to be sliced like a dowel does. I just used a mitre box and hand saw. Took me less than 30 minutes to cut and sand the pieces. CONSIDERABLY less than the pre-made ones. More $$$ for fabric!