Chocolate made by 'characters' often tastes the best. It seems that slightly unhinged chocolate makers produce flavours that no-one, in their right mind, would have thought about. You only have to look as far as Zotter to prove this point.
Although Kkartan and Oskar and that far gone, they have made a chocolate with charcoal in it which is certainly one to be tried. But with all that madness, and unusual flavour combinations, they still manage to create award-winning chocolate that simply astounds.