In Icelandic shops, Kókómjólk is also available in a sugar free variation and in a 250ml milk carton.
Every summer there is a game called "Kókómjólkurleikurinn", translated as "The ChocoMilk Game". In this game, one buys a 6-pack of Kókómjólk cartons, on which there will be a little note with a lucky number. The customer then goes to the Kókómjólk website and checks to see if the lucky number awards any prizes. Prizes could be, for example, a box of Kókómjólk or a ticket to the movies.