I have desperately wanted a bottle tree but I am not handy with tools, don't weld and my husband is even less handy with household type repairs. I've spent months looking for a way to make a bottle tree without spending $$$ buying one.
I found these green metal wavy plant stakes, 6'tall, at Home Depot and they were marked down to $1 ea so I bought the 11 poles that they had left. The red bottles were from Ty Nant flat spring water (found at Ralph's grocery store), blue bottles from sparkling mineral water (Italian, at Trader Joe's) and the green bottles were also from sparkling mineral water, San Pelegrino, bought at the dollar store but also found at Ralph's and Trader Joe's.
I absolutely love my tree, better than the bottle trees I've seen for sale online and a lot cheaper! The poles bob and wave in the wind and even with gusts to 35mph the bottles haven't smashed yet. I'm sure I'll have to take them down if we get the strong Santa ana winds. My only problem is water marks on the bottles from the sprinklers.