I don't really see what is so novel about her costumes. Although I know she is the only one doing those bras that come down like gathered fabric coming down vertically over the breast (like the pink one and the dark red one) but I don't really think there is anything too novel about them. For example, compare the pink costume bra to
this bathing suit (note: the link goes to a swimwear/lingerie shop) It's a shame they don't sell a matching coverup, or you could probably construct a pretty cute costume out of it. Replace the string band with something more sturdy, and sew evening gown cups into the top, and you'ld have a pretty cute costume bra.