Where the first person to go to the headteachers office and tell her that a particular poster on the wall in the canteen had changed (it used to change about once a month) would win a really good reward (well, good for 6 year old)! And it got be thinking, we should do this for ever time the avatar of RileyHolloaks changes seeing as there's a brand new one every 10 minutes
But seriously, did anyone else have things like this, or other interesting games, when they were in infant school/primary school?