Has anyone successfully moved a small woodshop on board?
I think regularly about this. I think if I was in a >50 foot vessel I could convert a center-forward cabin to a bench-shop with adequate ventilation (for varnishes etc), but I don't think space is the biggest issue.
I think the bigger issues are ample power, rust and weight distribution as the tool collection inevitably grows. Lots of tools (hand & otherwise) succumb as they are not designed for the harsh wet environment. (Unless we are talking about a live-aboard which doesn't move off the dock).
For now, I work in the space I am in and take over my father-in-laws garage when I need more room for a project
As others have said, the trailer idea is also potentially a good one, but perhaps something that is a co-op, like, rent the trailer with all the tools for x days...hmmm...
Also, I think a good old trawler could be made into a floating woodshop as the space could lend itself nicely, but the previous list of problems still exists.