Here at the Swell 3D labs, we rigorously test every product we recommend, evaluating for every conceivable use. For three days now, we've been testing those free Hannah Montana 3-D glasses that we got on Sunday from Wal-Mart.

As the photograph above shows, the Hannah Montana 3-D glasses passed the "cow skull and Hannah Montana wig" test. This is encouraging news indeed, from an anaglyphic standpoint. (NB: viewing this photo requires wearing Hannah Montana 3-D glasses.) We may keep you apprised of further tests in the coming days.

If you don't have your free Hannah Montana 3-D glasses yet, they are available at Wal-Mart, for free.