If you don’t want to splurge, your best bet is this Closed Romper. It's a wonderful piece, while not very pricey. Another strong contender for your wardrobe is this Isabel Marant Etoile Playsuit. While the price of this piece is not very high, it will surely attract a lot of attention. You might also want to consider this Alexander Wang Romper. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.