DIY String Chandeliers - blow up balloon, dip yarn in watered down glue, arrange around the balloon.pop the balloon, I think.
100 sensory play activities for babies, toddlers, preschool and school :: lots of sensory play recipes and messy play ideas
Lots of sensory bag ideas! They used Dollar Store hair gel, soap, and ziplock bags. Could be done with foodsaver bags, too.
Cooler Kids - Five simple and fun creative recipes for sensory play. A perfect way to keep cool this summer! From Fun at Home with Kids for Coffee Cups and Crayons