I think that my favorite Halloween costume would have to be the Robin Hood Costume that I made for my son when he was 3 years old (he is now almost 21). I made a tunic and put him in some green tights. I sewed up a cute Robin Hood Hat out of felt complete with feather. He was so cute!! He now hates the word cute, especially when it refers to him in any way but he was soooo CUTE!!!