Annaka Harris, author of the New York Times bestseller CONSCIOUS: A Brief Guide to the Fundamental Mystery of the Mind (HarperCollins, June 2019), has put together a free to access and comprehensive set of mindfulness activities designed for children and young people.
They include activities for all the senses, as well as activities designed to help children "settle at the end of the day"
You can check them out here:
annakaharris.com/mindfulness-for-children/