@heavanet- Since you mention that your curtains are tan and floral, I assume that you have several colors to choose from to make matching curtain holdbacks. I think that the easiest way for you to do this is to pick a color that is in your curtains' pattern, and purchase some material to match it.
Next, cut your material into strands that are about one to two inches thick and about 12 to 15 inches long. Wrap them around your curtains and secure them with hooks on your window frame. Just like that, you will have new, inexpensive holdbacks that will look great with your curtains.