Since you included posters... several if not all of the photographs
printed in the oversized calendar by Claus-Dieter Zink are worthy of
framing and hanging as art.

If you are located in the US, you may find reduced shipping charges by
buying the calendar, as I did, through K&G (http://www.eglider.org/).
Preview the images at Zink's web-site
(http://www.fotokalender-segelfliegen.de/), although the web doesn't do
justice to the prints.