By multishifting the 6 polygons from behind I made a tail. With Band Saw Pro I divided the tail section into few parts and multishifted the very tip. By using bend tool and marking the range of influence I bent it to the bottom as well as shrank. I deleted the polygons in between and created new walls with [P].
I didn't realise before but I multishifted the tip one too much times. I had to delete and create polygons at the end multiple times until I solved it (without having to start from very beginning).
I then beveled and deleted the polygons at the bottom and sub-patched it as well to make a body/handle. I beveled more and divided with Band Saw Pro. I beveled the tip and the sides to make something interesting at the handle.
I also used edge bevel to sharpen some edges at the top. At last I coloured it by pressing [Q].
I was messing with Surface Editor of parts of the hammer.
I uploaded the texture for a handle, and changed the settings so it seemed like it was made from one wood piece.
The head was given a lot of specularity and glowiness so it started to look like a metallic surface.
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Additionally I created Tardis by creating a box platform and beveling it from it. Then I added a cylinder at the top. It was much simpler, though I only kept it as it. The proportions aren't exactly right, neither is anything else.