Getting married need help!

Ok so we are getting married and we decided on an all white wedding (I know it's not traditional but he didn't want a masquerade). We are adding a superhero twist to it. The groomsmen will be in all white and their tie will be a different color, it will have a patch of the superhero they are on it and the color of the tie will also represent the superhero. The bridesmaids will have different colored shoes.. But they will match who they walk down with. I was trying to figure out what I could do for their superhero? I was thinking about a hair piece... But now I'm not too sure anymore.
Help a nerd out please!