To quote A Presidential History of the United States by Jim R. Harroway:

One of the strangest events to ever take place at the White House was the 1926 unveiling of a large statue of "Planters" mascot Mr. Peanut. Planters got permission to erect the statue on the grounds of the White House and it stood for a few months from about August to October 1926. Calvin Coolidge light-heartedly permitted the construction of the statue and later jokingly said of it, "It was my greatest achievement." After the statue was taken down, it was scrapped, and other than a few contemporary news reports, it was completely forgotten.