Check with the Young Life store as they do custom apparel. I've also heard good things about Port and Co. When ordering for the gals, make sure to order sizes larger than they might typically wear, as it's the style to wear them big. Guys typically are wearing their expected sizes.
If you design any sweet camp sweatshirts, send them our way and we'll share them on the blog and on social media. The best ideas are usually borrowed!
HT to Troy Earnest in East Atlanta!