I've noticed some plants have leaves that shed water really efficiently. Take the cabbage for instance. The leaves spread out to capture a maximum amount of water and sheds the water downward towards the stem and roots. The water beads up on the leaves displaying a nice waterproofing ability.
I wonder........
This month's project: A waterproof jacket made of cabbage leaves! As you can see I have a lot of cabbage to grow first! Stay tuned!