All about DIY cornices. Cornice boards are a popular, and inexpensive window treatment.
Window Treatment - Greek Key Trimmed Cornice and Panels shower curtain?
Make a cornice out of cardboard and attach it to a curtain rod to hand it. Maybe do a tufted one to match headboard
Make your own fabric covered cornice board to easily customize a space! Here& a step-by-step guide to build a simple wooden base, cover it and hang it.
This DIY window cornice gives windows a MAJOR new look! Full detailed step-by-step photo tutorial on Remodelaholic.