Well, my first boat was the Dumas SkDaddle. It wasn't a scale craft, just a flat bottom mono hull. It was 1972 and I was 14 years old. It took almost a year to complete, but I still remember the first time I took it out with my father.
In fact, I still have this boat. It is 34 years old and believe it or not, it is still sea worthy. I used 3 hour epoxy.