Minecraft wiki entry for Train_station, associated text: At a ticket booth, have a person behind a glass screen with a 1×1 hole, with the stated price and destination above the hole. For a ticket turnstile, have a series of iron doors separated by walls with holes in the bottom. Below the holes, have pits that open out into a room. Below each pit, have a wooden pressure plate connected to the door (preferably under) with a person standing next to it to collect the ticket. The ticket can be anything. Another idea is to have a separate room with redstone connecting the iron door in the waiting room. In the staff room, there can be a lever which when pressed will open the door. Finally, have controlled water flowing through a 1 block high gap which flows into the staff room (be careful of redstone.) Now, patrons can drop "tickets" into the water and when it reaches the staff, they can open the door.