Another interesting idea is to combine them as trims on a plain fabric - contrast collars, cuffs, front band or yoke, etc. If you were doing a skirt/p[ants and jacket in matching plain fabric, a contrast print can make a striking jacket lapel, and even the inside of turn-back sleeves. Roll them back to 3/4 length and show the contrast lining. And you might have enough for a matching bag!