1. A method performed by a system, the method comprising: storing, in a database, different stock templates and also, for each stock template, a stock image to be displayed with the template; receiving a user-designated image; displaying items simultaneously, each item incorporating a different one of the stock templates along with the respective template's stock image; providing, to a user, an image selector that is in a first position and capable of being switched by the user to a second position; each time the user switches the selector to the second position, transforming the stock images in the displayed items simultaneously to the user-designated image; and each time the user switches the selector to the first position, transforming the user-designated image in the displayed items simultaneously to the items' respective stock images.