If anyone is interested in Northern California, you can volunteer to help build a 100' Brigantine in Sausalito.
http://educationaltallship.org/
I went down this last Saturday and was put to work hand fairing frames which had just been bevel-sawn earlier this week.
I got through 3 frames and they took me off that and sent me over to the assembled keel. Another volunteer and I also drilled 24 keelbolt holes.
This is the good stuff guys.. we are talking REAL shipbuilding.