BA Kid's kits

Okay, so I want to back enough stuff to keep DS (4yo) happy during our flight but I don't want to dupplicate anything.  Anyone know what British Airways puts in their kids pack for the 3-5 year old range?
Thanks,
Michele

From the BA website

Once settled our crew will offer supersonic rocket booted, power haired Skyflyer activity packs to keep your children amused during the flight allowing you to relax and enjoy the start of your holiday.
Skyflyers activity packs* are available on flights over 3 hours - a fun backpack for children aged 3 to 5 years and funky shoulder pack for children aged 6 to 12 years inclusive, which contain a variety of goodies from cuddly Skyflyers toys & sticker books to electronic games and Top Trumps. Skyflyers activity books are available on all shorthaul flights over 1 hour.
* New Skyflyers activity packs have been rolled out and will be on all flights soon.

Thanks MeShell!
Michele