Many of you have heard of North Point Community Church or their lead pastor Andy Stanley. They were one of the pioneers of the attractional church model, and to this day, not many churches do it better.
A big part of that is top-notch design. And recently, they explained their creative process for the media of one of their series. You might not have the funds they have or the manpower, but you can certainly learn something from their process.
They do a great job going from their starting point with a magazine image, through their promotional videos and title packages, all the way to their final graphics. Make sure to either check their process out yourself or share it with the creatives working at your church.