Obligatory finished picture first
First off, i had to find some good stones to work with, I didn't want any round shapes but a really rough feel to it. So I had to start by splitting the +400kg stones.
I started a fire that i kept alive for a few nights in a row. Heating up one side and then throwing cold water on thee opposite side of the stone. The temperature difference will crack the stone in bigger slabs (potential bowls) than if I threw the water directly at the hottest place.
Cutting time. Invest in a good diamond 'cutting wheel' if you plan to cut stone. Also make sure to cover your eyes, ears, nose, mouth etc, the stone-dust is terrible. It will mess up your breathing so watch out!
Cut deep lines 1cm wide , then do the oposite way so you get small squares, then you chisel them away.
After two layers of doing this, I start to 
It took a lot of time to get it to stand by it´s own. Trial and error, trial and error..
The tools used besides a hammer and heavy duty sanding paper
Aaaaand, it´s done!
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