I design a lot of t-shirts.... Here are a couple mock ups and actual photos of what has come off the press.
And while I'm on the subject, if you live within driving distance of Reseda and you need a shirt printing shop, Carlos over at West Pac Designs has the best customer service on the planet. I sing the praises of his shop and his team whenever someone asks. He always texts me a photo of the first piece off the press, responds to emails almost instantaneously, and I'll never print anywhere else.