Was wondering if someone had or had the know-how to convert trash cans or large pails into gravity-style feeders? Those things scream "home made gravity feeder containers" to me but I'm not handy at all so am at a loss how to make a functional funnel or ?? to keep the feed flowing without getting clogged or the feed settling on the other side away from the feed exit. Or should I just give in and order feeders from catalogs..?