(no i'm not on commission lol..)
http://www.keychoob.co.ukProtects Paint - Secures Keys - Prevents Damage
Key Choob (Patent Registered) is an elasticated neoprene tube that stretches over your keys, leaving your ignition key free.
Key Choob will stop the rest of your keys and
fobs scratching surrounding surfaces.
Key Choob also eliminates noise from 'jangling' or 'rattling' keys and fobs and protects valuable alarm fobs from damage if you drop your keys.
interesting... costs about a fiver..