I sort of thought about a dozen would actually come!
So - I have pass-the-parcel (which will be slow with 17 layers!) and a face-painter friend.
And some sandwiches and cakes...
Is there something else for entertainment which would be simple / fun / wouldn't matter who wanted to play / how many / not likely to cause tears?
I could just have a colouring table or something too?
All tips most gratefully received...