DIY studded bra, maybe an idea for a bathing suit, but prolly not a bra.
You'll find many projects in which corset structure comes into play if you sew formal wear long enough. How to make corsets with interfacing. - I need to learn to be a better sewer
bodice block to corset
Fashion molds for Measure
Moldes Moda por Medida: TRANSFORMAÇÃO DE CORPETE