Below are some links to sites that deal with such vessels, professionals as well as amateurs:
Barrow boat, Norwich, UK
Swallow Boats, Wales, UK:
Sandpiper
Little Auk
Kittiwake
Shelduck
QUEEN MAB (Phil Bolger design):
Empress
of Boston, John Storrow, Boston, MA, USA
Minnie, Al Straub, Ann Arbor, MI, USA
Nell, William
Burgess, MA, USA
Pictures from the 2004
QUEEN MAB messabout in Boston
STELLA (Christer Byström design):
Grace
O`Malley, Christer Byström, Umeå, Sweden (first prototype)
Stella, Christer Byström, Umeå, Sweden
(second try)
Greg Wadsworth, Il, USA
Peter Pfister, NJ, USA
Frank Frazier, NH, USA
Bob Andrle´s Pelican (trimaran)