The Purdue University Harlequin Club collection contains programs and sheet music from the productions held by the club. Several of the productions are based on books and lyrics written by Purdue alummus and playwright, George Ade. The programs also feature some of the businesses in the area during the early 1900s. There is one button, "Wintergreen for President," from the Harlequin Show, "Of Thee I Sing," undated.