Implementations of a public use tag marking kiosk. Aspects associated with particular implementations of a tag marking kiosk comprise, among others, automatically marking two sides of a tag within the kiosk, receiving the tag to be marked from the customer, providing a closeable door between the marking implement and the customer while the tag is being marked, ejecting the tag from a tag holder after the tag is marked, and aligning the tag so that a desired tag side is required to be initially facing up on the tag holder. Housing for the kiosk may surround all of the system parts or may be split into a housing shell and a marking unit that fits inside the shell. Marking implements may be laser, mechanical stylus, paint, or others. Tags may be suspended in a cantilevered manner during marking.