Still no ideas? Well, if all else fails, there's always wedding magazines. Wedding magazines always have fresh, new, and unique ideas. They're all over the big book stores, and sometimes you can find them in second-hand stores. Who wants to pay full price for a magazine when you can get another one for 1/2 the price? Keep those in mind when you're doing decor shopping for your wedding as well. Second hand stores can have just what you're looking for, and are usually a lot less then the brand new stuff.
If you're fresh out of ideas still, try thinking of colors, and what they remind you of. Red reminds me of cinnamon, of spices, and things like that. Herbs! Orange reminds me of fire. Campfires, bonfires, hula dancing. Hawaii! Green reminds me of mint. Mint is in breath mints, in sweets, and cooking - candy! Think of any color you like, and think of what it reminds you of. You can try this with smells, too! Bread reminds me of bakeries, flowers remind me of gardens. Sooner or later you're bound to stumble across something you like.