Hey! How do I make my character start the game with certain wearable objects already on?

If I'm not mistaken, clothing being worn is just marked by a Boolean attribute on the item itself called "worn" (lower case). So just start the game with the attribute "worn" as True, and you should be good!

Put this in the start script:

(In this example, there is an object named "jacket".)

WearGarment(jacket)