The key to a good collage project is having good materials for the kids to look through. I found that Real Simple, some yoga magazines, art magazines, and some family/parenting magazines tended to have images that kids could relate to and get inspired by- and images that weren't overly sexual or misogynist. I put on some fun music while the kids made these, and then they took turns telling stories about each other's collages. It was lots of fun, and was like two projects in one!