Most of us at one time or another have trouble coming up with new and exciting colour combinations. Of course one way to get out of trouble is to use seasonable colour charts many of which are accessible on the net; one such site that comes to mind is Fire Mountain Gems who are actually a bead and finding supplier in the USA and you can check out the 2008-2009 colour forecast guide on their website.
Alternatively you can raid the paint charts and chips which are also seasonal and available at your local hardware store, but one of my favs is to use fabric or a piece of clothing out of my very own wardrobe.
Here's a piece of jewellery I designed around colours in a new blouse I bought in the summer. It was a combination of deep violet, white and rust tones.
I had been saving a luscious strand of violet dyed large fresh water pearls to make something for myself. I teamed these with sterling silver, and various swarovski crystals to match the colours in the fabric.