Links to some of the stuff used below:

This one has been on my to do list for way too long, and I finally found the method that works the best for me.

For a bit of a run down on the process, for those that wanted more information.

I started with the cheap porn ball (or gym ball), and made a cardboard opening, then coated that with cement and newspaper.

Once the first layer hardened, I added another thick layer of vermiculite and cement, and let that set.

Then taking that off the ball, I moved it into position on top of the fire bricks, raised up the back by around 30cm, and put the a thick layer of vermiculite/cement around the base, and over the whole mold.

Then more concrete/vermiculite, until it got to around 15cm thick, and a decorative coat of darker concrete.

I let it set for a week, fired it up with a small fire first, then after another day put a decent fire in there, and started making pizza!

Fire Bricks:
http://amzn.to/2rTtRw0
Vermiculite:
http://amzn.to/2szdXc4

The book I mentioned in the build is by Rob Dircks, The Wrong Unit, highly recommended along with his other books.

Check it out here:
http://robdircks.com/the-wrong-unit-a-novel-now-available/

And the music is by a talented musician called Nick Lutsko:

Thanks for reading this far!

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