Perlodent
We like the idea behind this advertisement, saying that if you use Perlodent, your teeth would be strong enough to open glass bottles, but we’re not sure that using this advertisement to open bottles of Coca Cola and other sugary drinks is appropriate for the message they’re trying to promote.
Perlodent might be good for strong teeth, but drinking Coca Cola surely isn’t. Then again, perhaps it was put there on purpose, with this idea in mind: if you’re going to drink Coca Cola anyway, you might as well use Perlodent, to try and make up for that. In this case, this is one of the most extraordinary signs we have on this list.