Keith: LOL, when I saw your title "Odd Finds" I was thinking it was for unusual or odd items that could be re-purposed as plant containers or garden art, etc. and I was going to suggest the Garden Art Forum:
http://garden.org/forums/view/...
If there doesn't prove enough interest for a specific forum for Odd Finds regarding plants, you can start a post in the All Things Gardening Forum:
http://garden.org/forums/view/...