HowStuffWorks "Moon Phases". I like that it actually shows the Sun's shadow so students can understand how this works!
Corrugated steel or pvc over woodpile! Firewood store- or could be bare bones for garden shed - will have to think on this!
Hope Chest/toy chest ($400 orig. price)
Pallet Projects : Pallet Project
Medium Trunk/Chest Handmade using Pallet Wood by PalletBrighton, £80.00
Wood Storage Chest - Make your own!
Williams Sonoma inspired DIY outdoor bench - diycandy.com
Expanding slat bench - exactly what I want for a coffee tabl