slightly highjacking this thread... but as it could be useful for the OP as well:
does anyone know of a good sturdy carrying case for the (folded) D66SL's? (in dreams I see something like the PX100's case, but fitting the D66SL like a glove, but something pretty well fitting and pretty sturdy will do)
I already know of the idea Ishii posted
here, but I'd like something smaller that fits the folded phones only really (and I'm also not going to buy another pair of headphones just to store the D66SL's

)