Juju Hats, or Cameroon feather headdresses are a fun and unexpected way to bring three dimensional design into any space. I used one in a design for a client's daughter's room in Los Angeles (above) as a decorative accent over the bed because it is light and earthquake safe. They are available in an assortment of sizes and colors and can work with almost any decor.
The JuJu Hates made with real feathers will run you anywhere from $300-$600. I'm currently obsessing over the yellow one below..
I've found the largest assortment of colors and sizes (including the large one above and mini one below) on Table Tonic
A cheaper alternative is a wool JuJu Hat such as the one below from Etsy
Available in a 13" size in off-white, pink, purple and green for $55
I personally think they would be really cute for decorating for the holidays, almost as snowflakes on a wall.
If you like DIY projects, here is breakdown of making your own wool one like the one above from Design Sponge.