fairy soup - happy hooligans - outdoor sensory activities for kids. This is also a free activity you could consider mentioning to parents; a trip to the local park and then play at home. Also called a messy mixture, or "perfume making"
Plant Pals Your indoor gardener may not get your "bad hair day" jokes, but the fun of this grassy-haired friend won't be lost on him. Like a Chia Pet, the project requires just a sprinkling of seeds, a bit of sun, and a few drops of patience.