Thingiverse user Willem van Dreumel created a 3D printable solar powered rowboat as an entry in last month's Thingiverse Make It Float Challenge. The rowboat can be customized to run on either a small set of solar panels, or a waterproof battery pack. The boat is piloted by a customized MakerBot Ban figure, but can easily be adapted for any jointed figure that will fit inside of the boats hull. Find out more about the project over on 3DPrint.com: http://3dprint.com/85589/solar-powered-rowboat/