Halloween is coming AND I still don't have a costume!

Halloween is right around the corner, and my kids already have their costumes, Doddle bug is going to be a devil! (if you knew her you would see the irony in that!) Duger is going to be a biker dude! I on the other hand am having a hard time thinking of a costume, Big Daddy and I are going to a Halloween party this Thursday and I still can't figure out what I am going to wear, I really don't want to spend 60 dollars at the store for a costume that I am only going to wear for a couple hours, and trust me when I say those plus size costumes are expensive!!!
ANY IDEAS!!!

PS: for all of you that are wondering Big Daddy is going as a PIMP!!!! lol