Would it be possible to set up a modification or addition where the user could click a drop down list of their items when they are going to post. They would be able to then select the item and place it into their post. (or just click on it and it activates a switch of some kind)
This would in turn deduct the item from the inventory and return a statement at the end of the post that a) The item was used and b) that it has been depleted.
Essentially, this would mean that items could be used within posts and since I run a role-playing forum I think it would be a great addition.