Giant
/give @s zombie_spawn_egg[entity_data={id:"giant"},custom_model_data={strings:["giant"]},item_name="Giant Spawn Egg"] 1

Illusioner
/give @s pillager_spawn_egg[entity_data={id:"illusioner"},custom_model_data={strings:["illusioner"]},item_name="Illusioner Spawn Egg"] 1

Killer Bunny
/give @s rabbit_spawn_egg[entity_data={id:"rabbit",RabbitType:99},custom_model_data={strings:["killer_bunny"]},item_name="Killer Bunny Spawn Egg"] 1

