From the Cornell Chronicle:
A movement to immortalize famed Cornell astronomer Carl Sagan with a U.S. postage stamp was launched Feb. 11 for local media at the Ithaca Sciencenter.
Patrick Fish, founder of the Utica-based grassroots Sagan Appreciation Society, and Charles Trautmann, executive director of the Sciencenter, unveiled four renderings by three artists or artist teams of proposed Sagan memorial stamps that the society plans to submit to the U.S. Postal Service for commissioning.
You can read the full article and see the potential designs here.