If you need a unique idea for your kid for Halloween, consider black swan costume for kids. After all almost every kid has been the Power Rangers or Spiderman. Further, when most people think of swans they think of swans being white (maybe because black swans are most easily found in New Zealand, but that is beside the point…).
Anyway, if you want to find a good costume for less, that is unique; consider shopping online. Places such as Ebay and even Amazon have all kinds of things you wouldn’t think of. While Ebay is still an auction site to a point; it is not nearly as auction oriented as it used to be. There are lots of buy it now listings that have taken the place of auctions; which is most unfortunate if you are the thrill seeking/frugal hunter that loves auctions–but for the busy mom this is great. It just means you won’t need to worry about getting your last bid in and winning.
Further, there are costumes to find at etsy.com. If that fails there is still partycity.com and halloweencostumes.com. As you can see, shopping online makes it easy to not only find things that are more unique; but cheaper as well.