Ebay has teamed up with a host of 3D printing specialists to launch an iOS app named ebay Exact which lets users customize iPhone cases, jewelry and other odds and ends.
Though users are able to engrave products, the level of customization appears to be limited to simple choices, including, in some cases, a choice of material between plastic, metal and wood. That being the case, not all of the products shipped will be 3D printed.
At present, the app is only available for iOS, and that appears to be limited to the US for now. Hopefully future versions of the app will allow more meaningful bespoke design on the part of the user. After all, that's the point of 3D printing, isn't it?