bottle tree and glass totem question
I have collected the bottles and the rebar to display my collection. We have an old stump that is a few inches about the ground that we are going to drill random holes in, then put different lengths of slightly curved rebar in the holes and top with the blue bottles. My question is how do I protect the bottles from the top of the rebar? Same question for if I make a glass totem and set it on top of a metal rod/pipe. Any ideas?