This looks cute and all but I promise you from experience that metal is a death oven for baby birds. We have metal sculpture giraffe in our yard that birds build nests in every year and the babies die. Yes we have finally been able to shut them out but it took a while to find a way to do that. Birds are insistent and once they build in a place they keep coming back no matter what. Also, your plant likely died because it was a copper container with no drainage holes. Plant either drowned in hot water or died of copper overload or just the heat itself. Cute teakettles can be used but plant the plant in a smaller pot with drainage and a saucer and insert that into the teapot. But only indoors and not in a hot window. I appreciate your honesty when you said you did the other stuff because just nailing it to a tree would have made your tutorial too short!