Of the ten designs Dali submitted to Hallmark just two were actually produced as cards The Nativity and Madonna and Child, the remaining eight including The Three Kings are languishing in the Hallmark Archives.
Dali's three exotically dressed kings form an odd, disjointed composition as they follow a Platonic solid star in a barren rocky landscape, with the leading King's camel looking fearsomely aggressive while the Black King's camel holds its head high - aloof - indifferent to all around, while the remaining king's camel seems more horse than camel, the net effect is oddly disturbing!
The reasons not all Dali's designed became Hallmark Christmas cards was that they too, were equally troubling or odd mostly both! One image - Headless Angel Playing a Lute - was particularly disturbing but it clearly shows Dali's Renaissance influences as its source is Piero della Francesca work.
Left Piero della Francesca (1470-5) The Nativity
Right Salvador Dali, Hallmark (1959 ) Christmas Card Design
Washington Post. 2014. Salvador Dali Christmas cards. [ONLINE] Available at: https://www.washingtonpost.com/news/wonk/wp/2014/12/23/these-salvador-dali-christmas-cards-outraged-hallmark-shoppers-in-1960/?utm_term=.44a0ddc26eae. [Accessed 21 December 2017].