Depending on Denomination, An option for those who want a Halloween Alternative! All Saints Day! All Saints' day costume ideas for boys. A list with more than 60 easy-to-make-yourself costumes for boys!
Play Pokemon Go with this no-sew Pokemon Ash Ketchum Costume with a simple blue hoodie vest and some yellow duct tape. Easy and fun idea for a Halloween costume for boys or any Pokemon fan! I did something like this a few years ago.