President Eisenhower, Honorary NCS Member
From gag cartoonist Eli Stein's blog comes a story of National Cartoonist Society members meeting with President Eisenhower in 1954. They made Ike an honorary member and gave him a presentation book of 95 cartoons. A couple of years later, to help sell war bonds, the book was reproduced as a promotional item. Eli shares some gag cartoons from that book here.
I believe this was when Ike received the Silver T-Square from the NCS. The Silver T-Square, "awarded, by unanimous vote of the NCS Board of Directors, to persons who have demonstrated outstanding dedication or service to the Society or the profession" was also awarded to one other President: Harry S. Truman, in 1950. More infomration on the NCS Awards page.