If you're a thrifty spender, your best bet is this Alice McCall Playsuit. It's a great item, while not very expensive. Another strong contender for your wardrobe is this Playsuit. While the price of this product is competitive, it will definitely attract a lot of attention. You might also want to consider this BCBGeneration Romper. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you want to splurge on a luxury piece, then you absolutely must check out this Diane von Furstenberg Romper. This product seems pricey, but it's top quality. While you're at it, also have a look at these Alice + Olivia Shorts. Yes, this item is expensive, but it does not mean it's not worth it. And one more item you might be interested in is these Rachel Zoe Shorts. 'Cause you deserve nothing but all the finer things!