This instructable will tell you how to make a costume that will make you look like this. It is a good project for children and short people. If you have the required materials, it should only take 2-3 hours to make. I am 13 year old but I came up with this idea when I was 7 or 8. It's very simple and if you're in a hurry you can skip the decorating section. I got 2 paper whole food bags full of candy with this costume.
Materials you will need:
Large old shirt w/ buttons. Don't use a tight pullover, it won't work.
Thats it. Everything you need. It will make a decent costume, but if you're serious you should check out the decoration section. Happy Halloween!
Step 1: Shaping the Cardboard
This is the heart of the costume. As you might have guessed, human shoulders are not shaped like boxes. So cut off a piece of cardboard with a length that will fit inside the shirt comfortabley, and follow the pictures below. connect the cardboard to the shirt with staples.