Master Shenron appeared in Once Piece as a big surprise, I thought you need seven magic balls to summon him. Anyway if he appeared what could Luffy wish to him?
Things that Luffy may wish to Master Shenron:
- He will wish for a Giant Meat from the sky
- He will ask to Join to his Nakama
- He'll make him pet
- He will ask to teach him the kameha-meha wave
- He will ask if the magic balls is really his balls?