Since the Mentos commercials were filmed in England, they decided to use a spoof of it here as Mintos.
The entire episode involved everything Europe, and the Mentos spoof wassuppose to be some sort ofclosure tothe whole European theme of the episode.
That's my take on lt, though I haven't seen that episode in almost6 years, but then again, that mayjust a testament on how memorable this show reallyis.