Here is the finished thor's hammer cross stitch!
Thor's Hammer Cross Stitch by ~audreydc1983 on deviantART
It was extremely tedious, required a lot of counting, and it was all the same color. The results are striking, but I don't think I'll EVER do this one again. Too boring when it's all the same color.
If you decide not to heed my warning, and would like to cross-stitch this masterpiece go here: http://crossstitch.about.com/od/freecrossstitchpattern1/ig/Wiccan---Pagan-Symbols/Thor-s-Hammer---Mjolnir-Chart.htm