For more intricate window dressing projects, the RÄCKA / HUGAD triple rod ($44.97) is the way to go. Finally, IKEA proposes a variety of finials for certain curtain rod models such as the RACKA ...

A good curtain rod will be versatile, both in terms of function and aesthetics: Ideally, you’ll change them out less often than your curtains, so you want them to work with a range of styles.