Just a suggestion for APC supporters, though i am pro Jonathan but i believe campaign should be issue based and silly propaganda should be avoided.

I don't know how to create meme (those pictures with funny captions on them) to respond to some of your critics.

To respond to the age propaganda against Buhari, you can create a meme like this:

a pic of golda meir, Yitzakh Rabin, Ariel Sharon or other world leaders who were older than Buhari when they became leaders of their respective countries. Ut will have a caption like "if you say Buhari is too old, then what would you say about me?

You can use a picture of Ruben Abati and, say, Yitzakh Rabin (during his second reign as Isreli PM). Abati would be saying something like "Buhari is too old". Then Rabin would be laughing and saying something like "look at this one!" or "shut up, what do you know!"

i dont know how to generate meme, would have done it for you guys.