Paint Bag Writing: Add some paint to a plastic bag, seal it up & spend the afternoon with your kids drawing designs through the paint. Using a Q-tip instead of your finger to avoid tearing a hole in the bag.
Had when i worked in a preschool and kids love them! I would use colored sand instead of white salt. DIY salt tray with alphabet cards. Easy to make and kids have fun smoothing out the salt after correctly making the letter