The final volume cover will have an image of Luffy and Pandaman smiling together, trust me :)
I still insist that Pandaman is Luffy's great grandpa, or maybe his cousin. Garp wore a dog mask before, who knows.
Here is some Pandaman information, please click to understand the character that is the panda.
We everyone know who Pandaman is, we're just kidding (or that's what I hope!! xD). There's also Sam-san, who appears randomly in differents arcs/places.
Here is an idea, maybe somebody should start a Pandaman thread.
Too lazy right now, I will consider it tomorrow.