MAngband

I think it would be fun if different classes could sense things about the newly generated level, for example: A ranger or warrior could walk into a dungeon floor and remark "Yuck! Smells like a zoo in here!" - i.e., there's a monster pit on the level. A rogue might get a tingly purse feeling and a m...

Here's the idea:

You purchase a Scroll of Purchasing (or whatever...)
Inscribe it with what you're looking for and however much you're willing to pay. You drop it in your house along with some money.
Players can see your "purchase orders" and fill them for you if they have the appropriate item...