Power Drill Scrubber I don't know who the responsible party is for coming up with this; but they're an absolute genius!
DIY Colorful Skeleton Leaves - not sure this will work with ordinary leaves but possibly with thick waxy ones like rhododendron (the leaves change in the later pictures).
Como hacer un molde de silicona, todo este tiempo! Make a Silicone Mold from Silicone Sealant - super easy and a LOT cheaper than buying mold making supplies
Dried flowers in wooden boxes
Discover thousands of images about How to Make Your Own DIY Leaf Skeleton « The Secret Yumiverse