How to submit graphic headquarters hats?

I've made some hats as I heard that there's a graphic headquarters hat contest but I don't know how to submit.If you know how to submit them please tell me,ty.

When there is a contest someone (most likely Olirus) will post a thread for it with a theme and directions to submit make a hat with that theme then submit how Olirus says then you will get a reward if you are chosen.

Wait till contests. They announce a theme and you have to make your hat similar to it

Question answered, closing.