My son wanted a superhero party for his fourth birthday. Thanks to the Superflykidz shop at Etsy, I was able to provide capes for all the attendees. (Don't mind the baseball bat my son is carrying.)
What a spectacular hit they were! Any kid under the age of six will be thrilled to have a personalized cape. And make sure you get it in a spooky color. According to my son, that's black, blue, green, red, silver or purple.
To infinity and beyond!