[color=magenta]Meh, I don't think that there is any way for hatched Pokémon to be in anything except for the regular PokéBall, unless there is a code for a cheating device (like Action Replay) that allows for you to change what kind of PokéBall that your Pokémon are in.
On a somewhat related note: Something I have always wondered... When a Pokémon hatches from an egg, where in the world does the PokéBall that it lives in come from?! I mean, your inventory of PokéBalls doesn't decrease whenever a Pokémon hatches. (or when Nincada evolves into Ninjask and Shedinja... unlike popular belief, you only need an open space in your party when Nincada evolves to get a Shedinja, you don't actually need a PokéBall.)