One way to mod your CMOY will be to cut an opening on the top of the mint tin and use aplexiglass window instead. Add a few low power LED's in a color of your choice on the inside (separate power supply for these please - perhaps a AA battery) and show off your soldering skills.
Another suggestion - tape the insides of the tin with an insulation tape before you mount your PCB and the rest of the equipment. Also - when making holes for the headphone out/ line in/ toggle switch / volume control and power LED - try to insulate the metal around the hole so that the sockets/etc. dont come in contact with the case. You will encounter RF/RMF noise (not bothersome but not required either).
Dont thank me for the input - head to www.headfi.com
and you'll learn in NO TIME