So, what are Bezier curves good for if you're not going to do much with them?
This thing is a simple boat created out of Bezier surfaces. I define a bow, and a midship section, and a stern, then just stitch a few of them together. In the picture can be seen how the control mesh looks.
This particular one shows how you have to print in a couple of halves and bring them together. This is an artifact of the linear extrusion offered by the OpenScad bezier library.
This model takes about 3 minutes to generate the .stl from the .scad. Not too bad.
1) Load the .stl into your favorite slicer
2) Size appropriately
You can print in individual sections and glue together if you like.
You can also change things like the width and height fairly easily, and of course, you can make it as long as you like by adding more 'midships' sections.