Here's just an observation, you can consider it worth just exactly what it costs. Most of the wood blanks that people cast into "worthless wood" using the process that Curtis published a while back is not distressed or altered into the shape that is then cast. It is usually cut in such a way as to expose a natural edge or feature that is then filled or enclosed in resin. The main reason for that would seem to me, that the grain around naturally occuring irregularities in wood usually is disturbed and tends to form itself around the feature. If a regular piece of wood is modified after harvesting to have an irregular edge or hole, the grain around that hole will still be straight, and will simply go through the resin features, or at best be irregular but not really conforming to the open areas that are filled with resin.
Can interesting shapes, colors and other designs be made this way? Of course they can, but the chief appeal of that type of design would probably tend to be a repeating or regular pattern, rather than a irregular or natural void.
Just something to consider.
James