I´ve been doing it since I was a kid. Just ships though, mostly from the 16th and 17th century. I´m currently building "Le Soleil Royal", french one from 1669. Well over 6.000 pieces and standing well over a meter tall and the same in lenght it´s a monumental task. The "rigging?" (all the ropes that holds the sails) are over 400m long on this model. Don´t ask me though how long I´ve been working on her, he he!