How to make a collage of text messages?

My girlfriend and I have had to be in a long distance relationship over the last 6 months. Most of our day to day conversation has been through texting. What I want to do is make a collage of some of the nicest/sweetest messages I've sent her for her birthday. Ideally I would like to make it the same style and format as iPhone messages. Does anyone know how to make print outs that would be roughly the same size and formatting as an iPhone message?

Take a screenshot? This tells you how [1] you don't need any special apps to do it. Just view the message you want to capture, take the screenshot and then save the image from the phone to your computer. Edit the images in an editor of your choice to make a collage or just print each one out and do it by hand.