Here's a thought that has occurred to me many times: "gee, I'd like to study x instrument in y museum or collection, I should check if there are CT scans of it"
Much more often than not, there are not scans of the instrument in question. I realize that this is the case for a reason, namely that it's expensive to get access to the instrument, the equipment, and the few people with the specific knowledge required to take and render usable scans.
I am sure that many of you have experienced the same thing. Perhaps if enough people come together, though, we could do something about it. P