I think any good literature, whether it's for children or for adults, will appeal to everybody. As far as children's literature goes, adults should be able to read it and enjoy it as much as a child would.
I love drawing on lead. Romans used to curse each other with sheets of it. My slave would come slide the sheet under your door with a curse on it. They had amazing writing and drawings on them, and they survive to this day since lead is so stable.