I got this image from http://www.theappleinsider.com/, the same site that let an image of the MDD PowerMac go before it was released. This looks ever so real and looks like it would be pretty damn hard to do in Photoshop.
http://www.theapplecollection.com/design/macproto/WirelessMouse.shtml
http://www.theapplecollection.com/design/macproto/WirelessMouse.shtml