I thought the Eisenhower Christmas cards were pretty neat with President Eisenhower doing a painting that was reproduced:
...Eisenhower continued his tradition of painting for his 1955 Christmas gifts, but instead of a portrait of a past President, he painted a landscape near Fraser, Colorado, where he frequently visited to go fishing. The painting was entitled St. Louis Creek, Byers Peak Ranch. However, in the midst of his work, Eisenhower suffered a heart attack and was rushed to Fitzsimmons Army Hospital in Denver. While recovering in his hospital bed, the President finished his painting so that it would be received by Hallmark for reproduction in time for Christmas.
Go check out the rest yourself at this fun site!