My sister and I decided to be Louise and Tina Belcher (respectively). We made our costumes, of course. I say "of course" because we're cheap-os and we don't like to spend a lot of money on something we'll wear once.
I'm sharing how I made my Tina wig. Posting a DIY today is a little bit useless because it's Halloween already so even if I share this, will you have the time to make it? Actually, it's a pretty easy project so maybe you can make it. Whatever, I'm sharing it because maybe you can save it for next year.
4 pieces of black felt (8.5" x 11")
To make sure there isn't a gaping hole in the top, you have to gather the felt together. Fold the top of the back piece in half and sew each half to the adjacent piece. Oh my gosh, I feel like I'm not explaining this v. well. I should have documented it better. Hopefully the photo below is decent enough.