Badges update automatically and link to the mod page on MineUniverse.
The entity inside will always watching your mouse(always).
The author thinks it would be very interesting to add such an entity display in the FTB Quests.

/give @p entity_display_item:entity_display_item[minecraft:custom_data={DisplayEntityType:"minecraft:pig",DisplayMobScale:1.5f}]
/give @p entity_display_item:entity_display_item[minecraft:custom_data={DisplayEntityType:"minecraft:pig"}]
If you encounter any bugs or have good suggestions, you can provide feedback.