I needs one >_<
Tis for my Belle cosplay.
So yeah, any ideas?

could you link to a picture of the corset in question...

just to help those costume builders / idea merchants, who aren't familiar with the character

M

Simplicity does quite a few dress patterns with bodies like you want. Just use a different skirt pattern obviously.

Variation 1 on pattern 8127
http://www.ecrater.co.uk/p/12224397/simplicity-pattern-8127-full-skirt-party?gps=1

Or either 2400 or 1875 might work.
http://www.sewingworld.co.uk/Simplicity_Special_Occasions.html