This looks like one of the easiest water walls I've seen. Fun with water, great recycled plastic bottle project.
Pallets also are very often used in boards creating, especially if it concerns DIY furniture projects.
awesome Top 20 of Mud Kitchen Ideas for Kids Mud kitchen (also known as an outdoor kitchen or mud pie kitchen) is one of the best resources in DIY projects for kids to play outside as kids playhouse.
Mason Jar Log Bird Feeder: 9 Steps (with Pictures)