On luxury weblog Luxist there were two recent posts about mass customization services. One post is about Custom Eyes a high end company that makes custom eyeglasses for you. You can go there, measurements are taken and glasses are made just for you.
The other service is from Kendall Jackson a large US winery. For $30,000 they will create a customized wine based on your taste. Expensive? Perhaps but you do get 30 bottles with your own labels too. To me this is really a portent that what we do is going to get crowded soon.