SafariNet is a mob catcher plugin that allows your players to catch and release mobs in the world of Minecraft. It's a nice solution if you want to transport mobs through world.
Catching a mob is very simple: At first, you need to craft a safarinet. Then you perform a right-click on a mob, and the whole mob with all its data gets in the egg. Next time you're right-clicking, the mob would be released.
The whole entity data is saved including villager trades, chest content in mules, health, sheep color, etc.
Eggs can be used on spawners. To see a list of allowed spawner entities click here. Spawners
Mobs that cannot be captured are Players, Enderdragon, Shulker, and the Wither.
Reusable eggs are won via contests and giveaways.