How do I make all players use a certain bundle?

[lionslunchtime104 (lionslunchtime)]

How would I make it so every player is a certain bundle from the catalog? Or even better, they click a GUI to become that bundle? I know in avatar settings you can set certain body parts but I want it to also include the hair and hats.

[GiantDefender427 (giant)]

You can build an avatar with all the custom things you want in it name it StarterCharacter and then simply put it in StarterPlayer