A manufacturer or other retailer provides a consumer with a graphical user interface for customizing an article. The graphical user interface includes an analog-style selection control that allows a user to select at least one characteristic of a feature of the article. With this type of selection control, a consumer need not select a particular control value or designate a combination of control values to choose a characteristic for a feature of an article to be custom-manufactured. Instead, the consumer need only select a position or value relative to a range of positions or values provided by the analog-style selection control.