Shulker boxes are special storage containers in the game Minecraft. They are unique because they can hold items like regular chests, but they also retain their contents when broken and can be transported easily. This makes them very useful for organizing and moving items around in the game. To craft a shulker box, players need to obtain a shulker shell from defeating shulkers, which are found in End Cities. By combining a shulker shell with a chest, players can create a shulker box in any color, allowing for both functionality and customization in their storage solutions.