All adverts do this haha, all adverts are going to want to show their product to be better than any others available to encourage you to buy it, but here are some:
http://www.google.com/imgres?q=advert+for+perfume&hl=en&biw=1366&bih=667&tbm=isch&tbnid=WCuN0BiiLBbgTM:&imgrefurl=http://www.mimifroufrou.com/scentedsalamander/perfume_images_adverts/index14.html&docid=e8j-_IsQh42IqM&w=400&h=509&ei=059eTsrbIJO58gPtpsGvAw&zoom=1&iact=hc&vpx=188&vpy=78&dur=4426&hovh=253&hovw=199&tx=147&ty=85&page=1&tbnh=167&tbnw=134&start=0&ndsp=21&ved=1t:429,r:0,s:0
That shows a glow effect round the edge which suggests it to be the best, I'm sure you can find other things to comment on
Just google things like "advert for" and then chocolate, perfume, crisps, whatever. And you'll find all adverts make out that their product is superior to others on the market.
I wouldn't worry about copyright for the sake of the project, that's only if you use it publicly and pass it off as your own!