You know, I did that with my niece, a few months ago, & b/c we practiced is why I think we managed to DS that night. I think that would be very funny!
Let me try one: Hey! Now that I am dreaming, where is my cookie dough & Nintendo DS?
Another one: Hey! I want to bob for carmel apples! Appear, or die!
Sci-fi: Hey! I have a duplicate, this is a dream. Now how do I activate that emergency trigger?
I think that is funny, but maybe you should PM me ?s.