She can put photos of husband of wife(who are dead elders in family) and they can be supposed to
Or She can put the photos of Rama and Sita and can be supposed that they are performing kanyadan.She can put photos of Siva Parvati or some other photos.
But this is done very rarely.
Any local elder(or MLA) family(who are reputed)can also give kanyadan. email@example.com