It has received wide circulation online and was also published in a self-reliance anthology. I built the pictured birdhouses from pallet wood. The Challenge If I can show you how to manufacture birdhouses and other cool stuff anywhere in the country and if I show you how to find the raw materials for freewould you be interested? If so, here is a business plan that works. Have you seen those weathered wooden pallets stacked behind grocery stores, piled beside feed stores or next to the dumpster in your local lumber yard? Those pallets, your initiative, and the information that follows could mean money in your pocket for years to come. Pallets are often available free for the asking. There are two kinds of pallets—reusable and throw away. The reusable pallets are often made of oak, poplar, and occasionally maple.