I present you with many more-or-less affordable ballet flats and a range of ways *I* would style them. Happy pirouetting!
I literally just bought a pair of maroon velvet ballet flats from Mango on the weekend. I've gone through maybe four outfits in my head that I could wear them with. Look: Dark blue jeans, ballet flats, a white shirt layered with a blue linen shirt or a cardigan: https://www.pinterest.co.uk/pin/194921490114862263/ (example).