I ordered a custom 1001 iaito from http://www.swordstore.com/
(aka nosyuiaido.com) and I expect its delivery fairly soon. At the time, I didn't think much of having a wakizashi for display.
Now, in reviewing the custom order websites, I have not seen any of the web houses offer custom wakizashi. It would be nice to find a zinc alloy full-nakago version that would be safe to swing, but that's not a requirement. A display version would be acceptable as long as I could have it crafted to roughly match the appearance of my katana iaito. Same coloring, same menuki, same tsuba, for example.
Anyone have a source for wakizashi?