Potrod I think it's safe to assume this is from the same people who brought us Japan World Cup horse racing.
5 stars for the Norwegian ski jump curling at 12:20. Also "Choo choo train."
infinite zest I think my favorite is the one right before the Norwegian one, but they're all pretty awesome, even though I've seen most of them before. I've tried to track down an .ISO of this game but to no avail; something tells me it's probably more fun to watch than to play anyway.