That is so cute and hillarious! However, I don't think it would be very good for her to have much at all. I know unpopped kernels can be irritating in the gut, and the high starch/carb content of popcorn isn't good for the rabbit's digestive tract. Because a rabbit evolved to survive off grass, small shrubs, etc, it's not equipped to digest carbohydrates. The high carb content of many things slows the gut down so that it stops moving things through as quickly, which could lead to stasis. Also, large amounts of carbs can cause an imbalance of the beneficial GI bacteria, leading to diarrhea.
So, I would put popcorn in the same category as cereal, bread crusts, Cheez-its (my guys will maul your face for them!), and other carb-y treats. Give very rarely and in small amounts to avoid GI upset. Bunnies love these things, but they are just like potato chips are to us. I let my guys have 1-2 pieces of these high carb treats a week (not toast, though. maybe a nibble of the crust). You can try lots of healthier treats, like dried and fresh fruit. My guys love apple, banana, papaya, mango, and cranberries. Some bunnies also go nuts for veggies which are a very good treat because they're very healthy. My guys love broccoli so much it's like a treat to them.
