Not sure if you found what you're looking for but if you can't find something that illustrates this directly I would suggest trying something abstract or something humorous - often this actually works better in my opinion.
For example, you could use this clip:http://www.revostock.com/Stock-Video-Fo ... -story.htm
Then you could write a humorous script about the fact that the older man beats the younger man. Why? Because he uses Black Stallion". And then you just add a product shot and strapline at the end. A sexy female voice doing the Voice over would be good as well.
Or you could do something abstract with a clip like this:http://www.revostock.com/Stock-Video-Fo ... -story.htm
These aren't quite 30" though - the former would make a good 20" and the latter a good 15"
As stock is just a part time thing for me and I focus on directing I'm pretty good at writing scripts for this kind of thing. If you need help with that and even the recording I could always do this but it's going to be quite a bit more than the cost of a template. VO artist fees etc, recording, script writing. And you would have to purchase some stock music etc.
Otherwise look around for something else, but chances are you'll have to go abstract. You can see how I used these clips sometimes in an abstract way for this promo video here: http://www.youtube.com/watch?v=R9p3KmEP3VE