Arc3D is a free tool allowing users to upload digital images of a scene to a server where a 3D reconstruction of the scene is performed. The output of the reconstruction, relative camera positions and a depth map associated to each input image, can then be imported into Meshlab for reconstructing a 3D mesh of the scene.
http://www.arc3d.be
http://homes.esat.kuleuven.be/%7Evisit3 ... anual2.php
You need to take lots of photos, especially with more complex objects.