Why not add a bit of contrast with some orange ornaments. They work well with the green of the tree and work harmoniously with the traditional deep reds we are used to.
Why not add more colour with pine cones? You can paint them any colour to add a snowy touch (as seen here) or a vibrant surprise with turquoise or even pink!
I was shopping today and saw the most amazing bird ornaments! They add a beautiful surprise nestled inside the tree. It is also a unique way to add colour and interest without falling back to the good ole' Christmas ball.
Whether you are enjoying the smell of a fresh Christmas tree or looking at your perfectly shaped and lighted fake one - add some fresh scent with cranberries and peices of orange or lime. This makes a beautiful and "natural" looking garland.