You might not want to create characters for sale. There are quite a few very skilled character creators already, it will be extremely tough to compete against the many accomplished merchants. You could focus instead on stuff that is lacking in the stores. Posable vehicles, posable interiors, contemporary environments, there's not much Poser content in these areas in the MP. Will you earn enough to make a living? Maybe, maybe not. As elizabyte says, you'd have to be extremely good (stonemason/mapps level) or extremely prolific - and preferably both. Dynamic clothing is also an emerging market. Not many dynamic cloth merchants - yet. You could make a killing in dynamic clothes. Anyway, I wish you the best of luck!

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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