This site has a fun funky light craft. https://craftycrafts.wordpress.com/tag/crafts-for-your-room/
They took ping pong balls and cut a small hole in them and stuck them over the "flame" of a tea light. Then the kids decorated the ball with permanent markers and used duct tape to decorate the base. You could also use washi tape.
would you be willing to share the superhero poster/frame? That sounds like a great idea!