suggestions for hand luggage

Can anyone suggest some things that could be packed in kids hand luggage to keep them entertained? They don't want to take things like psp's or any electrical things in case they get lost or broken so apart from the obvious books magazine's pens pencils etc etc has anyone got any good suggestions? We are flying with jet2 this year and I've heard that they don't have tv's. Also what handy things do you adults pack in your hand luggage either for entertainment or just something that always comes in 'handy' I always seem to have a lot of 'stuff' with me that I never use 
