HURRYS ON UP! HELPS ME OUT! RIGHTS NOW! Need help picking out prom attire for my daughter?

HURRYS ON UP! HELPS ME OUT! QUICKS! ok? i need some helps picking out approp prom attires for my daughter, mist. her juniors prom is coming ups, its just peeking right around the corners and its time to hoist ourselves into this and start getting some ideas for proms wear ok? Mist has already asked her girlfriend Mandy to attend the juniors prom and she accepted so they will be goings together. Mandy has already picked out a white and cream colored suit along with a purp tie and hat. What can mist wear alongsides of mandy so that they match nicely and blends well together? any ideas?