could do bug obstacle course DIY American Ninja Warrior Backyard Obstacle Course - Five different elements. Build and re-build this obstacle course, and then it breaks down for storage. Storage ideas in the post.
How to make a modern hypertufa planter to use outdoors in the garden - perfect for succulents! Use concrete ready mix. plus organic matter (for hypertufa):such as peat moss, cocoa husks, wood chips or sawdust