Call Bells

The Call Bell (or Desk bell, aka 🛎 ), when placed on or adjacent to a villager's workstation, would call the villager who uses that workstation to the workstation. Let your villagers roam free about the village instead of sticking them in claustrophobic 1x2 spaces, then ring their call bell if you'd like to trade with them. I'd like to see iron, gold, and copper variants, as well as a unique lectern model with the call bell on it.