Help please just one of the following sample to persuasive example an old pocket calendar.

I choose to promote a blotting pen:

Have you ever made use of a blotting pen that gives magical and accurate writing ability? Such is this branded blotting pen. This pen is very unique because it makes your writing neat and eligible. It has smooth nibs that can dance smoothly on the material you are using it for. There is something sweet about this unique blotting pen: it is detachable, comes in various colours, lengths and the ink is refillable.

Another uniqueness of this blotting pen is that it is economical and very affordable.

Explanation:

In persuasion, we try to make our audience to take a call to action. We give reasons why our product is better than every other in the market. At the point of persuasion, lies and unnecessary exaggeration should be avoided. This is to avoid customers getting a product without the features that were mentioned in the advert.

When we speak persuasively, we try to make people go with our own decisions.  

tending to cause harm

c) vampires in history and modern life.