For Suzannah who asked about dress forms, everyone has their own preferences but I'd like to vote in favour of historical silhouettes! My two are actually modern remakes of historical figures, and the waist sizes aren't as ridiculous as you might think. One has a 22" waist (which can easily wear up to a 24" corset without looking "empty" and another has a 19" waist (which, yes, is *tiny* but due to the rest of the curves it too can happily hold a 23" corset without looking empty). 23" and 24" corsets are pretty ordinary really.
I know they might not strictly be "necessary", but I just absolutely love them! A bit like corsets, I guess :-D
I do pad out my larger regular dressform when displaying bigger corsets though. But really, you can't beat photographing the item on a real curvy human body!
Lol, a company in the UK called Proportion London Ltd. have, amongst other things, a range called "Retrospective" which features silhouettes from 1875, 1888, 1910 and 1930 (the last one, clearly, isn't so appropriate for proper corsetry). They aren't cheap (it ends up about the same as buying antiques in reasonable condition), but they're stunning :-)
I have to say that the wonderfully helpful staff at the Fashion Museum in Bath actually directed me to Proportion London (and a few other alternatives) when I emailed them to enquire about display methods. It was incredibly good of them to answer my rather cheeky enquiry!