I'm looking to engage an illustrator to create a one-of-a-kind gig poster for an event. Our non-profit auctioned off a private concert with a jazz trumpeter, and one of the benefits of winning was the presentation of a gig poster signed by the artist. Poster will feature the trumpeter, the venue name and location, and citation of the winning bidder, possibly using his name in wording, "Joe Smith productions presents an evening with..."
There are tons of examples of gig posters online. Here's what you get googling Avett Brothers gig posters: https://www.google.com/search?q=avett+brothers+gig+posters&espv=2&biw=1280&bih=918&source=lnms&tbm=isch&sa=X&ved=0ahUKEwij-4WJyuLPAhWCNiYKHdqoDLQQ_AUIBigB