{
    "pools": [
        {
            "rolls": 1,
            "entries": [
                {
                    "type": "minecraft:item",
                    "name": "minecraft:player_head",
                    "functions": [
                        {
                            "function": "minecraft:fill_player_head",
                            "entity": "this"
                        }
                    ]
                }
            ]
        }
    ]
}