Prismarine
Buyable: Yes
Description: This cape was awarded to @Drullkus for recreating the prismarine block for use in his Chisel mod, rather than altering Mojang's texture. Jeb had this cape made before contacting Drullkus, but it had no owner. Before this cape was given to Drullkus, @KrisJelbring had it on his profile, but it was later removed.