Pendulum Painting- take the grandkids to the playground with some paint in squeeze bottles. Use a inexpensive painters tarp for their canvas. If it is acrylic paint I think it needs watered down but would have more permanent results.
Diy Crafts Ideas How to make an I Spy Bag for Kids, Full Tutorial. This simple diy is a great idea for kid gifts for birthdays, christmas, or just to have a toy to occupy little hands. Less hour this craft can be made quickly.
Shapes and transportation activities for preschool book Away We Go! by Chieu Anh Urban Love how you can use shapes to make things. I think this would be a great classroom activity! car building with shapes