In this tutorial, we learn how to make a homemade compost tumbler. Find a large barrel and mount it on a wood frame. You can use recycled materials, like an old pickle barrel if you can find one. There should be an axle in the middle of the wooden posts that runs through the tumbler as well. There should be a pipe in the middle bottom of the barrel to run air through, that will exit through the top where the handles are at. The aeration system will help your compost work properly, so you can use it to compost your foods, enjoy!