Buy some slabs and a sledgehammer. Batter them into shape.
Our local garden centres do a range of stones in various shapes. You would have to pick them out individually, rather than by quantity or weight, to get the flat surfaces.
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Buy some slabs and a sledgehammer. Batter them into shape.
Our local garden centres do a range of stones in various shapes. You would have to pick them out individually, rather than by quantity or weight, to get the flat surfaces.