WOW! Thanks for this thread. I just found it. Been looking for sometime to get some ideas. I had a dream last night where I took a piece of 3" pvc, cut open the top and put caps on the end. Making the opening wide enough for the little mongrels to get their flinging beaks in there and not kick the food out all over for waste. I have cut PVC on a table saw and it can be dicey. Will look over pics, and submit some more when I attempt this feeder. Problem is, The pieces can be as expensive as buying a new feeder with a lip for "anti-flinging".