Pea gravel and pebbles can weigh down windowboxes. Empty water bottles are a lightweight option. Place rinsed bottles inside the planter and add soil on top of them. The space between the bottles will allow proper drainage without the extra weight.
Display-It Storage Mirror - shelf from Ikea. Attach a mirror on one side and a cork board on the other side. Attach the shelf on top of a Lazy Susan. You can purchase the Lazy Susan from Ikea. This can help with organization and storage.
Dishfunctional Designs: The Upcycled Garden Using Recycled Salvaged Materials In Your Garden An old window hung from a tree adds interest and shape to your garden Window frame & sill - Using Recycled Salvaged Materials In Your Garden.