You have much to offer. Share what you know. They will forget every routine trip you made to grandma's house, but they will remember every detail of the time you made a wrong turn and ended up on a back road. Use this insight. Plant moonflower seeds in the dark.
Children remember what is humorous.
We all do. That's why we forget the theme of the sermon, but remember all the minister's jokes. So tour the art museum, and decide whose face you'd like to see elongated like a Modigliani or painted blue like a Chagall. Children remember what they do, not just see or hear. Make this the Summer of the Mess.