Don't you know the feeling of annoyance when the glass breaks in a zinc lantern? And there is no chance of a candle being lid without the wind blowing it out. It has happened to me several times by now...
But then I got a great idea, if I may say so myself.
There is no reason to throw away the lanterns. Instead you take out the remaining glass. Drill a hole in the middle of the bottom and put the lantern on a pole and use it as a bird table.
(The ones that are low and square or rectangular, are probably more suitable for the purpose than the ones which are high and narrow.)
Sadly I came to think of this after my husband had left for the recycling depot, with 2 of my broken zinc laterns!!!