I used this tutorial to make myself a candy corn costume. Make sure to sew the fleece so that it stretches from side to side and then you don't have to worry about a zipper or buttons to get in and out of the costume.
And since we already had a batman costume for my toddler I fell in love with this idea for a cape. I made mine out of fleece so that it would repel rain and possibly offer more warmth. Plus, I didn't have to worry about hemming everything or the fabric unraveling.
Toby thought it was the best peek-a-boo toy EVER because it never fell off.
Hope you all had a great Halloween too