I wouldn't make a table out of Starboard if the only alternative were papier-mache. No strength, loves mold, can't be glued, painted, epoxied, sanded, etc. - the list goes on. (Don't get me started.) A nice piece of birch plywood, well-treated with epoxy (got to seal its edge-grain) and trimmed in teak or mahogany (depending on what your interior is now) is FAR more yachtlike, practical, and good-looking. Do your beloved boat justice.
FYI, Will G - Starboard is a thing of itself. It is not cutting board, which is FDA-approved and comes with textured finish. It is not HDPE either, which comes milky-white, is shiny, and is sturdier. It is a proprietary product that was designed to fill a gap in the market, for a cheap, structurally-indifferent, and easy-to-work material for the average non-boater who just wants it DONE (what I call 'digital morality' - 'it is what it is'; or 'it either is or is not'; or 'quantity speaks more than quality'; or 'I don't care because at least now I have a table'). If you can do any kind of woodworking at all (and I mean even 8th-grade-level), then you are already capable well beyond the limitations of Starboard.