Entity Display Item
This unique tool allows you to display various creatures inside an item, and they always follow your cursor movements. Adding such interactive elements is particularly useful in FTB Quests, where these displays attract players' attention.
Usage example:

Obtaining the Item
To get an item with a displayed creature use the following commands:
/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"}]
These commands will create items with different settings for the displayed creature.
If you encounter technical issues or have interesting ideas for improving the mod, please report them to the developer.