Great idea and tutorial Becky!
This is so cool ... and I sure wish I could make one but I have no space for one; even if I did, our HOA wouldn't allow it where it could be seen from the front or sides of the house.
But, I wonder if one could be made as a free-standing unit that I could put on the back deck. The back of our house is right on a waterway and there's not much land between the porch, deck and the water so I'd have to have it on the deck. I think I'm going to print this out and show it to my husband. Our tenants are moving out of our rental house the end of the month and we're hoping they remove the stack of wooden pallets they've got piled in the back driveway. I might just have to confiscate a couple of them!
I really love this idea!