I see that the last re-using thread has been deleted, so I thought I'd start another one!
I use metal colanders (from charity shops or discarded) for hanging baskets in the garden, and for herbs that need very good drainage. I've got strawberries, flowers, thymes and a sage in them currently.
I used to hang them with some old chain I had, but ran out. I've now used fruit nets, looping them together to whatever length I want, then tying them onto the handles. I've only used green ones for this and they just look like rope, and are super strong.
To think that London, or anywhere else for that matter, does not belong to any one demographic