[txchic]

Consider finding a red or purple bra or cover a bra with red or purple fabric. Cut away the fabric on the bra cups that came with the costume and use it to cover the upper edge of your red or purple bra or simply use the designs as an applique. Or use sequins and ovals of fabric in those colors to create the design on your bra. Of course you could aim for contrast and cover one bra cup in red, the other in purple and go from there. You could also rouche fabric over the cups of your bra and apply the ovals in random locations.