* Amazon
* eBay
* Etsy
* Walmart
* Target
* Department stores: Most major department stores sell Wizard of Oz costumes, including:
* Macy's
* JCPenney
* Kohl's
* Target
* Walmart
* Costume shops: Costume shops sell a wide variety of Wizard of Oz costumes, including:
* Party City
* Spirit Halloween
* Halloween City
* Thrift stores: Thrift stores may have used Wizard of Oz costumes at a discounted price.
* Garage sales: Garage sales may have used Wizard of Oz costumes at a discounted price.