Vistaprint has recently started making large vinyl banners and the price can't be beat! And the fact that YOU customize your banner to look exactly the way you want it to is fantastic. I got myself a "small" 3'x1.6' banner with my own photography and hanger-tabs for less than $15 - including shipping!! I think it turned out fantastic (if I can brag...)
Looks even better in person (if I may continue to brag...) It was printed and delivered to my door in about 10 days. I absolutely love it. I can't wait to see it proudly displayed on my craft show booth. But for now it is proudly photographed on my living room floor. LOL
There are different schools of thought about Vistaprint. Some people (like me) love them and some people don't. I've been ordering business cards from them for many, many years and have never been disapointed. They do have a tendancy to go overboard on the emails - spamming me at least once a day about a sale. Every day is a sale at Vistaprint so I just ignore the emails and order when I need to order. I love that I have a fantastic craft show banner, glossy postcards, and business cards all with the same brand recognizability. My rosary. My photograph. And now my banner, postcards, and more.