I love it when cats do that. Midnight used to do it, but he was so strong he would leave paw shaped bruises all over my neck. Sadly Meecho only does it to her blankey wow when you think about I don't know why I'm so sad...bruises versus rash burn...hmm decisions decisions
I love the look they get in their eyes when they're really getting into it...pawing at something.
Walter paws at his blankie all the time, and gets his face about half an inch away from the blanket, with this really intense look on his face, purring at the top of his lungs. He gets so involved with what he's doing, I think a bomb could go off next to him and it wouldn't distract him!