On the left and below are examples of some trade show exhibit posters I've worked on. You'll notice product has been added to the printed posters or on a shelf below posters.

This company presents items at an annual automotive trade show, each year one design style is determined to be used as the overall look for the booth and incorporated into all posters, sell sheets and marketing collateral for the event.

The photos show examples from the 2007 and 2008 event.