- Glinda the Good Witch
- Wicked Witch of East and Wicked Witch of West
- Tin Man.
Image by Chip York Photography, CC BY 2.0, Flickr
You can get Dorothy costume on eBay for kids from $10 up and shoes from $5 and adult costumes cost $20 and more.
There are a lot of costumes available at Amazon too at fairly low prices - for instance 20 dollars for Dorothy's child satin dress and hair bow and adult dress from 25 dollars.
But don't forget to buy wig (which is actually not necessary) and red shoes.
Then there is Glinda's costume, you can get kids outfits for 25 dollars, there are dress and crown too in this set.
Another costume there is Tin Man costume for kids which costs form 13 dollars up and Scarecrow costume - you can get it for 18 dollars.
Let's not forget - you can get great discounts for all these costumes right now, before Halloween, almost all of costumes have lowered price and prices change daily, some even hourly.
And there are only few of the costume available for some items. Some costume have 10 % discount, but I found few with 50 - 70 % discounts too.
So check it out on eBay where you can get new or used costume at very low prices and at Amazon where you can find great and quality costumes for very low prices.