Pin the tail on the donkey (or cutlass on the pirate/thagomizer on the ankylosaurus/whatever else your son is into and a picture that you can draw. Musical chairs is good, too, as va active and 7 isn't too many.
Ds1 wants a proper party this year (didn't have one last year, just went out somewhere special with one friend). There will be about 7 boys of this age (Y3) in our house and I don't have a clue how to entertain them.
Thought of the chocolate bar game where you need to put on glasses hat, scarf etc and then cut the choc with a knife and fork. Also maybe something with Nerf guns (we have 2). Any ideas what I could do with that? And any other ideas for some good, old fashioned party fun.