Models for specific player heads

I Was wondering if it is possible to make certain player heads have different json models than other heads with the use of optifine and or mcpatcher.

For example, if i were to do "/give @p player_head 1 0 {SkullOwner:Flowerpot1}" it would give me a custom modeled head regardless of if the player name exists or not.

It's probably easy enough to do in 1.12 but i want to start using 1.13

Please help!