In case you don't want to go bother and look, the others are pretty funny:

1. "Small friend is for hiding, big friend is for showing off."
Even if the product they are pitching works as promised, I still don't think I would be walking around the neighbourhood showing off the results.

2. "The hard friend in your pants will look up into the sky."
Thanks, but I would prefer it if my friends stayed out of my pants.

3. "Men will see your power in every public shower."
If they did, wouldn't I be arrested?

4. "Who doesn't love a big gun in the pants."
Isn't that what holsters are for?

5. "Make your love torpedo drive all the way to her tanker."
Maybe I missed that SexEd class, but I'm not entirely clear on where I would find a woman's tanker.

6. "Transform from a grass snake to a python."
Have you ever seen a python? Ick!

7. "Make your man's carrot grow."
What the heck are they selling, fertilizer?

8. "To the stars your manhood flies when you are happy with your size."
This writer's a poet and they don't even know it.

9. "We can make your man's volcano erupt like a famous Etna!"
Lava. Fire. Smoke. Thanks, but I can do without those in the bedroom.

10. "Put your doughnut in her oven."
If my 'thing' looks like a doughnut, I should see a doctor.