i had a friend who cosplayed as ironman and to sort of help guide/handle him i cosplayed as a s.h.i.e.l.d agent. mainly walked in front of him and prevented people from touching him because he was on some stilts to appear larger. then helped with taking photos with fans. my cosplay was pretty easy. Just a suit and a laminated badge hehe
I recently got my wife a sewing machine and cosplaying was a good creative avenue. She made a cosplay of Bulma from Dragonball. it was really cool and her own take given her skills. She wants to do another Bulma outfit but likely one from DBZ.