I know of Bus ticket from of locel town of Nuuk and Maniitsoq. But there can be more of these.

From Nuuk - Nuup Bussi - I show single tickets og cards with 10 tickets. Green are tickets for chrildren. Yellow are for adults.

From Maniitsoq - Maniittsup Bussii I only have the one pinkt ticket.

I think there eksist more.