If it came from Warwick they should know where to source them... very odd!
It might be worth dropping Warwickhunt a line, if there's something to know about Warwicks he's usually your man, also the Warwick forum.
To upload pictures at the moment it's best to upload to flickr or photobucket and copy the link across to here. Inconvenient but it's the only option at the moment I'm afraid.
Possible people to contact: ACG, Shuker, Letts, RIM, 13 Guitar Co., Xylem, The Bass Gallery, Bass Direct... I'm sure someone else could come up with some more