Sometimes you find great ideas in unexpected places. The following link showed up in my FaceBook news feed. The site "handsonaswegrow.com" has fabulous ideas that are both good for children and for the environment.
"You’ll find crafts, art projects, energetic activities, and fine motor activities regularly on the blog. And a couple times each month I do a collection of play activities on a theme, such as what to do with all your crayons!"