My dog has a Dogloo -- one of those plastic igloo doghouses. It has a plastic flap for a door. He has chewed at the 

lastic flap and now it is only attached on one side, so it kind of hangs lopsided. I can't reattach it, because he chewed off part of the plastic at the top.
I would like to replace the door or fix it somehow before the cold weather sets in. Does anyone know if they sell replacement door flaps for Dogloos? Or have suggestions for other types of doors I could put on there?