NPC IDEA
Loustyn Fown'd (Pronounced Lost n found)
Mythical peddler who picks up forgotten items. There are a couple ways you could use this:
1. Sometimes players forget they have items and never use them. If a player hasn't used an item in an amount of time determined by the DM, they have to roll a check (DC depends on how important the item is either to the player or the story). If they fail, they have lost the item (a DC 15 perception check will allow them to specifically know they've misplaced something). This item goes to Loustyn Fown'd and if they want it back they'll have to somehow figure out how to find him and retrieve it.
2. Like any other shopping episode, the party stumbles upon a strange merchant. This is Loustyn Fown'd. He has many weird items that people have lost or forgotten over the years. Maybe there are items from the character's youth. The players can get any of the items (whether originally their or not) for free if they can successfully convince Loustyn that it was once theirs.