It could be an Item or a bumper:
But I prefer it as a bumper so that everyone can use it when the owner wants to.
You can See the realm map on your top right whenever you put the Map item on top of your Inventory, or the owner enables it when bumped.
- map moves whenever you move
- can be used to show your build view
- A Map Blocker can be used to prevent the use of Maps
- good in playing large adventure maps
- there should be a different map mark for the owner so you can easily tell where he / she is (optional)
* Only Your Mark
* You and Your Friends
* Everyone in the Realm
- The map should have a minimize button.