What to pack for trip to africa for fun?

Im going to ghana next tuesday for 3 weeks, i am 14 and my sister is 16 we will be at home a couple of times while my mom goes to funerals, we are thinking of taking 2 or 3 of our laptops and our wii with 14+ games and my ipod touch was broken by a close friend so i may have to repair it fast, what else do you think we should take..........