Lapin my DC always get some glue or sellotape in their stockings as well as new pens/pencils and the older ones get tippex. I find that by Christmas the school pencil cases are somewhat depleted anyway and of course when we need glue or tape for some marvellous homework we can never find any! This way they all have their own. until they lose them sometime in February that is
We also buy new socks every year as they always need those, and pants if they are needed. I also buy them all a t-shirt as they can be rolled quite small and squished in.
I do a bare minimum of party bag crap as I just don't want the house filled with it.
Trying to think what else my 6 year olds are getting this year - a Lego Mixel and a Lego minifigure. A chocolate orange of course. Can't remember what else I've bought!