Tools: virtually none
Materials: old washer drum, spray paint, rocks, dirt, plants and light
Step 1: Salvage Operation
One day, just hanging out at TechShop, this old washer drum pretty much found me. Someone had left this back by the metal scrap bin earlier that morning, and I knew it would make a perfect funky planter (and subsequently save me ~$80).
Don't look at objects as they are, but as they could be.