DIY Vintage Milk Crate Turned into Unique Ottoman Tutorial -- could use the plain wooden crates found at a craft store, plus thick or heavyweight fabric, foam, plywood. Could also add hinges to make the top open for storage inside!
Pallet Planter with Terracotta Pots . with some hose clamps and screws to secure the pots, this old pallet has been upcycled into a feature vertical garden. For more inspiration, see 20 Creative Ways to Upcycle Pallets in Your Garden