What's in the jar?

First post is this fantastic piece of marketing that a friend found yesterday. Some ad comapny got paid for coming up with this........I am clearly in the wrong business. I could make about twenty disgusting jokes here, but all of them are too obvious so I will refrain. Although I have to say, I would have had to open the jar to see what was in there. Like most blokes, the nads in a jar feeing is something I have experienced on a number of occasions. My thanks to Nai for giving me my opening shot.