There's a somewhat famous line in Baker v. State, 371 A.2d 699 (Md. App. 1977) that says anything can be used to revive one's recollection, including "a line from Kipling or the dolorious refrain of the 'The Tennessee Waltz"; a whiff of hickory smoke; the running of the fingers across corduroy; the sweet carbonation of a chocolate soda; the sight of a faded snapshot in a long-neglected photo album."
My evidence professor, Kent Sinclair, told us that this was just poetic language that the judge was enjoying writing, that he'd never seen a whiff of hickory smoke used to revive a recollection.
I was, however, nearly able to use one of the Judge Moylan's examples in my evidence class last year. I had a student who played basketball for Vanderbilt. I had no idea whether this would work, but I asked her was the name of the facility where she played at the Univ of Tennessee. She didn't remember. Perfect. So I said, let me see if I can revive your recollection -- and I started to play the Bonnie Raitt and Norah Jones duet of "The Tennessee Waltz" (perhaps my favorite version, but more relevant to this discussion, one of Tennessee's two official state songs and the band plays it at the end of every game). The student *almost* played it perfectly. She recalled that it was the Thompson Boling arena but sadly just shortly before the youtube clip I had uploaded began to play. (For those interested, here it is: http://www.youtube.com/watch?v=zzDUi_L6MzA)
So the only in class demonstration came by way of Seinfeld -- Kramer and the previously sugar-addicted optometrist -- to illustrate this phenomenon. http://www.youtube.com/watch?v=gh9nNJrQoWo