Below is a picture of Thor’s hammer; Mjolnir from the extra scene at the end of the credits of Iron Man 2. The picture is not of the best quality, I will be attempting to get a better picture as from the quick glimpse you see of the hammer, you can see that there is writing on it.
Along with the scene from YouTube (currently)
[youtube=http://www.youtube.com/watch?v=OruJE6yg1LQ]