Has anyone tried using steel 5-gallon buckets for the hanging feeders with eye bolt in the bottom? We love these feeders made with plastic buckets, but the squirrels have been chewing through the lids. I can't keep up with the cayenne pepper. It rains, and then they start chewing the rims again. We have had feed ruined because of rain leakage through the chewed bucket lids as well. I'm tired of replacing feeders. I've ordered the steel buckets. In just wondering if anyone has tried using them with good results.