The client sent two photographs of the artist and a request for a full page ad in 2 hours time. Neither photograph was suitable. Some fast work in Photoshop and InDesign helped meet the deadline. (The full story is here: http://blog.gngcreative.com/2012/04/13/making-an-ad-with-what-you-have/)
Not quite "instant," but created from unsuitable components in under an hour on a last-minute rush deadline! This is the final result, the raw materials are below.
This great album cover shot was provided at too low a resolution for use in a poster or full-page ad. It's also too static for a concert poster.
Wonderful live shot, but the artist is at the left and facing out of the frame, which isn't going to work for a concert poster.
A faux background, created in Photoshop to match the color, lighting and grain of the original image gives space to work with and places the artist on the right, where he needs to be. The rest of the work was in InDesign.