This past weekend I built an arbor out of 1/2 inch copper pipe. I found a product called Copper Bond made by the makers of Super Glue that works wonders. However it is a little messy and sets quickly so you have to work fast. I have also spotted a different copper glue product that may work better for us slower workers at the local Tractor Supply. I would like to try my hand at different designs but seem constrained by the limited type of connectors, reducers, elbows, and t's. Anybody got any good ideas for different connectors?