Have you tried rotating the engine by hand to move the piston up in the bore? You might be able to get it in a better position to grab. Maybe if you still can't get it, bringing the piston up to TDC might bend it so when you move the piston back down, you can get a grip on it. Make sure you don't lose anything metallic in there trying to get the plastic out! Then you would REALLY have top pull the head. If I was frustrated enough, I'd just fire it up too.