![Image](http://www.fantasticmaps.com/wp-content/uploads/2013/02/Ship.png)
Feel free to download and use it with your maps. There's also a tutorial on how to create it (with video!) over on the blog here:
http://www.fantasticmaps.com/2013/02/ho ... free-ship/
It was created to go along with this map pack, and the tutorial covers the method used to create all the icons in that pack.