I get requests from clients every once in a while, asking if I know someone who would like a dog bed or crate they don't use, or that puppy harness the dog has grown out of. In the past I've put these things on the newsletter, but I thought this would be a smoother way for you all to sell and buy second hand things from each other.
Email me at firstname.lastname@example.org with details about the item you want to sell/buy. Size, colour, condition. You would need to leave an email address or phone number and a name for people interested to call. If you have a picture of the item/items email that too.