>>>Check http://blogs.msdn.com/klevy/archive/2005/05/19/420016.aspx
>>
>>That's still way too much. Maybe Ken will sell me his old ones cheap.
>
>I think they are custom made.

http://www.headphone.com/guide/by-manufacturer/ultimate-ears/ultimate-ears-ue-10-pro.php

Cripes! They are $1,000 plus the cost of having the mold done.