Most of these images come from the endlessly amusing archives of Copyranter blog.
This ad comes from a French sushi restaurant that hands out free condoms to its customers. I think the implication is that if you have HIV, your sperm cells have skulls for heads. Sure; why not.

This Brazilian condom company likens protective sex to prison visits.

A train company begs people to visit London by presenting them with a yolky baked bean creampie.

Viagra will make your sperm combustible.

And finally, a condom campaign you might remember from last year suggests that we could attain world peace by ceasing to reproduce.

RELATED:
How A Man Produces 1,500 Sperm Cells A Second
Everything You Never Asked About Semen
The Top 10 Oral Cumshots in the History of My Masturbation