from pmachines.scene import Scene
from pmachines.items.box import Box
from pmachines.items.shelf import Shelf
-from pmachines.items.domino import Domino, UpStrategy, DownStrategy
+from pmachines.items.domino import Domino, DownStrategy
from pmachines.items.basketball import Basketball
from pmachines.items.teetertooter import TeeterTooter