So you waited until the last minute to put together a Halloween costume huh? Don't worry. I've got your back :) This tutorial will help you put together a super cute Halloween owl costume for your little one in an evening with some simple materials found around the house. McKenzie has shared a step by step tutorial for the owl costume and that adorable headband. oh, my favorite part of the costumes is that there's no sewing involved. Just grab a glue gun, some fabric and follow the instructions given here to make this Halloween costume.