First, the reference pic I'm using:
I decided to use the pepakura method for this one, because the amount of detail on the head would be much easier to accomplish with it. I used a file found on the 405th and unfolded it myself, printed, and got to work.
Here's some progress shots from the build, all found on my Twitter feed.
After that, I added some final details, and the hammer was ready for strengthening and details!
It's winter here in Utah - well, sort of. New Years was 60 degrees, followed by a week of 20 degrees, then snow (which melted the same day) and so on. Because of this it was difficult to work with the resin and bondo I planned to use for it. I was able to heat up our shed outside, but not fully to a constant 60 degrees. The temperature is still playing games with me as we speak, so here's hoping it decides what it wants to do and sticks to it.
Meantime, I was able to resin the entire hammer: