great tutorial for painting them, but you can do some truly wonderful things when painting your radiators. Make them look like a focal point rather than a giant design obstruction.
2. Add shelving: I think this is a well-known secret, but it certainly adds a nice touch. Rather than just adding a single shelf to the top of your radiator, why not create multiple shelves or even an entire shelving unit around your radiator?
3. Build a radiator cover: This Old House has an easy DIY for this. It's fairly simple and think about the possibilities! There's such a wide array of colors and textures you could use for your radiator cover. Images: Wary Meyers Decorative Arts, Covet Garden Magazine via Poppytalk, This Old House