This web site www.ponoko.com is THE ultimate for those wanting to experiment with designing their own products and then having someone else make them. HOW COOL IS THAT?!
Things designed are made on demand. There is a cut in waste from oversupply in the marketplace since each item is made on demand AND Ponoko is working on cutting carbon emissions by sourcing local materials and then making the products as close to the consumption point as possible.
Check them out and let your inner designer loose!