Disklavier

Hi there,

I was wondering if anyone's heard of or seen a locking plastic cover 
for the face of the electronic pieces of the Mark III unit. I have two 
toddlers who find it amusing to stick things in the disk drive. 

We were at the Grand Californian Hotel at Disneyland, and saw that 
their piano in the lobby had a locking plastic cover over the entire 
face of the area where you put the CD and floppy drives. (Not the 
keyboard; just the electronic parts).

Am hoping something like that is for sale, but haven't seen anything on 
the Yamaha site or online.

Any thoughts? Has anyone had this custom made, or is home piano 
security not a big issue? :)

Mark