I don't know the possibility of something like this being implemented, but I think it would be a really great idea.
A furniture item that would work by allowing FC members to request certain items they are looking for (materials, gil, crafted items or whatever else makes sense). Example:
1. John Doe needs 8 twinthread to complete his dastardly scheme, but doesn't have the ability to gather crawler cocoons and is also really short on money.
2. John Doe goes to this FC Bulletin Board and enters that he would like 8 twinthread.
3. Sometime later, Jane Doe (unrelated) sees that there are new FC bulletin requests and checks the bulletin. Knowing that twinthread are easy for her to come by, she attaches 8 twinthread to John's request on the board.
4. John is informed by a message (similar to when market items sell) that his bulletin board request has been completed.
5. John picks up his twinthread and happily begins working on his evil plans.
Thoughts?