get movies, time will fly by ! two hours for each one, two movies 4 hours taken of right there
if it is a video ipod get TV shows since you cant watch TV shows on DVD players unless you buy the season thingy.
bring a notebook, write poems, songs, draw pictures, or keep a journal for your trip !
i love journaling

my family doesnt know but i write in one every night secretly and i hide it in a place that i cannot reveal because my mom posts on the dis ! ahha .
i write EVERYTHING and ANYTHING i feel . EXPECIALY when im angry so i get the anger out then im calm-er-ish and i read what i wrote and review the situation.
in your case flying over the ocean, i would write songs, poetry, or draw what you see or feel .
i usualy draw what i feel .
i love to daydream, make-up my own life in my head !
interesting twists and turns all in my mind

anything i want, i put in there !
and if i dont want it anymore i act like it never happened !
day dreaming is awsome to me !
ahha .
since you PROBABLY will be brining a camera most dig. cameras have a video option thing so make videos to log it and put them on
youtube when you get home.
make a scavenger hunt for yourself
ex :
must get a picture of..
a person sleeping in an awkard way
the piolet
a video of someone picking their nose
a crying baby/toddler
person drinking water
a couple kissing
a video of someone snoring
ect .
if you have siblings and have enough cameras for all of them have a contest !
hope i helped have a fun trip !!