This would be a good DIY! Get plywood cut to order from your local hardware store. Mark the positions of the nails with something removable, like soap, fabric chalk or pencil. Then use the string of your choice to make a gorgeous sailboat.
This tutorial is supposed to teach you how to make macrame bands in different styles. They can be used as bracelets, belts, or just for decoration. Under each image I will indicate what knot you need to make the band.