On a light note, the American Physical Society (APS) maintains this Website, dedicated entirely to physics limericks. At APS site, visitors can access an archive of all submitted limericks and a more specific list of the winning limericks of APS's First Physics Limerick Contest. Besides showing that physics is fun, most of the physics limericks are focused on a specific concept and would work well in undergraduate physics courses. If users are feeling creative, they may also submit physics limericks through an online form.