Alright, well wal-mart and home depot has the trellis netting. As far as getting the screen across the entire bin I'm not quite sure how to do that. I read a few posts about using zip ties like you said. My pots are circle shaped though so can't really make an even net with them. If I could get something to stick to the corners I could put sticks or something on each of the corners, zip tie the net to the sticks and have it that way. Just not sure what would be secure enough. If I had a power drill I would just make a frame, but I don't Even then I couldnt see how I could get the frame to stay in place.