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"
SPRING TO ART - Painting with real mud. How to make mud paint in bold colors, such a cool sensory art project for spring!
The Fastest, Easiest, Cheapest way to Add Running Water to your Backyard Play Space - camping water carrier