I have about a dozen hanging pots (the standard green nursery pot) that don't have the hanging thing anymore. Sick/bored of the ideas I've already tried. So far, fishing line is my fav. It's kind of invisible, and allows the pots to sway/spin more.
What else? Re-use ideas are my fav, but would love to hear anything you can think of.
twine
fishing line
wire coat hangers
macramรฉ
chain