I have three of these that I made and they seem to work for me. During the Summertime, I hang one off of the front porch, one off of the deck, and one off of the patio. In the Wintertime, the squirrels are not a problem because they are all curled up in their hole. During warmer temps., the cat keeps them pretty well at bay and the rest of them seem to get lead poisoning. When squirrels do come they don't seem to bother these DIY birdfeeders. Plus during the warmer days, I will hang it out on a larger, farther-out branch. You have to hang it high enough so that the deer can't get at it, and away from the trunk of the tree so that the coon can't get at it. They are made of 30" of 4" thick walled PCV pipe, with a cap with 2 screws to hold the cap on when it is filled. The base is a 16" heavy-duty Pizza Pan with small holes drilled through, so that it will drain, attached to the PCV pipe with 4 small angle iron brackets. The base is reinforced with a 5/16" piece of plywood. It works for me and it keeps the sunflower seeds dry while they are in the tube. I didn't have any plans, I just put it together.