I made this extendable triple pedestal table based on Ana's orginal plans. I had to "engineer" the extension system - which was fun - and it worked out nicely. I also added a threaded rod through the pedestals (towards the top) to give added support in addition to the pegs through the centerboard.
Thanks for the inspiration and the plans, Ana!
Helmsman Spar Finish (minwax) 3 coats on table top; 2 coats on base
I used beeswax on the extensions to get them to slide nicely. But don't get beeswax on any wood that you're going to finish...it repels stain and finish.