Paul Rudd took advantage of a once-in-a-lifetime opportunity during his visit to last night’s Late Show. Considering it was his final Late Show interview with Dave, Rudd figured it was the perfect time to whip out all the goodies he got as a member of the unauthorized David Letterman Fan Club including a very special sponge he’s waited thirty years to soak in water. It was a long time coming, but it looks like the wait was worth it.