Re: It's got a CD player
If the user doesn't know that it's for CDs or CD-ROMs then he probably doesn't need it to work as a disc player. So you could just tape the thing back together, add in a drip catching mat. Upgrade the device to a working CD drive if it's actually needed. And don't let the guy use anyone else's computer.
Or: call it a "music player", which it is. Then leave the unlucky user to face the music.
And why do they have a CD player or cup holder in a fighter plane anyway? Well - I suppose you really don't want your drink to spill in there. A sippy cup may be best.