This might be fun just for the sake of having suction cup ponies to stick on windows and stuff. Stuck On Stories are simple books that allow you to attach backgrounds with characters to create your own stories. Some of these are the most accurate I have seen yet in toys, and they totally have Luna! This specific set was found at a Toys R' Us, though it looks like this website also carries them, as well as a Bubble Magnet Book.
Thanks to Scootaloot for the image!