Sorting Colors with Cardboard Tubes--this website has lots of great ideas for preschool fun! Could be fun with cardboard tubes and acorns and numbered baskets for a fall sorting activity.
clothespins for parties
Pom Pom caterpillar magnets, use double sided sticky tape to attach the pom-poms and use magnet ribbon in the bottom
Kandinsky Artist Study from Teach Beside Me
Cute kid project-Old Book Pages and Bright Color - I love how this looks. Great project to do with kids - decoupage old book pages onto a piece of wood - let dry - use it as canvas for artwork - cheap, easy, rewarding!