|Butterick's B5556: 1955 design|
|Princess Margret's 1960 wedding dress|
This means that I need to make an under bodice that's strapless and either wear it as a completely separate piece or attach the two somehow.
I did a bit more looking for a base pattern for my maid of honour's dress. Found a few viable options:
|Butterick's B5603: the blue dress|
|Butterick's B6582 :the yellow dress|