Minecraft wiki entry for Command_blocks_and_functions, associated text: If a certain player has been very nice, regular, or helpful to the server but not quite meeting the requirements to be promoted to an admin, players could have a room full of buttons connected to command blocks with helpful effects, like giving the helpful player a stack of diamonds or a bedrock block, then have it connected to another command block, sending them to the spawn point. (It is very important this room is reinforced with bedrock, hidden, and you can only get in by teleporting to its co-ordinates to avoid abuse).