What a great idea! Decorati's kits for Thomas Paul's new fabric designs (for Duralee) would be incredibly handy if you're trying to design a space and you're not a designer. (And maybe even if you are a designer.) For $20, you get fabric samples, paint suggestions and design schemes. The fabrics are available to the trade only, but Decorati offers a buying service to consumers, or they hook you up with a Design Advisor who will purchase the products for you.
My favorite kits are Palms (above) and Winter (below).