I absolutely love all kinds of live edge wood - I often use a technique called fractal burning and/or epoxy resin.
These rustic reclaimed wood items are a perfect one-of-a-kind, dramatic conversation piece for your home!

Fractal burning occurs when a conductive solution is applied to the wood and then electricity is introduced via 2 electrodes wired from a transformer (microwave). As the current tries to connect, the high voltage burns river like patterns into the wood.