Are you taking the ribbon off the dowel as soon as you pull it out of the oven? It's kinda like when women use curlers in their hair. You've got to let the ribbon cool on the dowel before you pull it off. I bake all my ribbon-dots, solids, prints....at 300 degrees for 22 minutes. I use no spray of any kind. (I buy all my ribbon from either rabom or offray so whatever material it is it always curls) Here is how my korkers turn out with the method I use: OH, and I use 5/16 dowels Creative Side Bows hair bows for babies, toddlers and girls.