I love Gir from Invader Zim, but I didn't see any costume ideas I REALLY liked that portrayed Gir with the big head and tiny body. I decided to make my own Homemade Gir from Invader Zim Costume.
I used a poster board for the head, cut and glued it. I bought a sheet from the thrift store and used it for the body and I used socks and stockings for the hands ears and feet. The ears were shaped using hangers that I cut and shaped by hand! I did the same thing for the tail. I used a regular tie cut and covered a piece of cardboard that I had shaped to make the zipper.
It was a VERY cheap costume costing me, probably less than $10 because I already had most of the supplies!