Outdoor Sensory Bins - especially love the rice and spice idea...the kids would love "cooking" with that, and I'm sure they'd find all kinds of outdoor ingredients to add (e.g., grass, flower petals, leaves, etc.)
Homemade Pumpkin Moon Sand Recipe perfect for Fall. Moon sand has such a FUN & unique texture. It is sand-like but soft and squishy. It can be molded and holds it's shape really well but also has an OOZE to it. (Kids LOVE this stuff!