The influx of Irish immigrants in the 1840s to North America could not find any turnips to carve, as was tradition, so they used the more readily available pumpkin into which they carved scary faces.
That way, you will have a one-of-a-kind outfit that can not be bought from a store, and you will save money as well. Out of ideas? Check out some of the coolest Halloween group costumes.
The Americanised (Americanized?) Halloween that we experience today actually originated in the Celtic fringes of Britain, and was adapted over the decades by Christian traditions, immigrants conventions and an insatiable desire for sweets.