This instructable goes into detail about how we (my partner Renier and I) created a mosaic backsplash using CDs and the tips and tricks we learned along the way.
The backsplash is truly impressive. When light shines on it, it creates beautiful colorful light shows that change depending on where you are standing in relation to it. Its reflective qualities bring more light to the space, actually minimizing the need to use artificial light when working in the kitchen during the day. One of its most rewarding qualities however is that it was basically made from trash - CDs that no longer had any use. As you may see in Step #6 "Why use CDs - Environmental benefits," even some of the more "advanced" cities do not accept CDs for recycling. Do you have other ideas or tips & tricks for how to reuse CDs? Feel free to post them or any links in the comments.
It's hard to say how long a project like this would take. There were many times when Renier asked me "when do you think we'll finish this backsplash" and I'd say "today if we really want to." I think it totally depends of the determination of the persons working on it. We started this project while having a lot of other things going on, so it was something we continued bit by bit every day when we found some time. It took us about 2 months to finish, but it could have taken us just a fraction of that time if it were our primary focus.