Tomorrow there will be 8 8/9 year olds coming over for DDs 9th birthday.
Do we need to actually do anything with them? 
Obviously we have food and drinks, the karaoke microphone is charged and I've found a good kids playlist with lots of lyric videos, I've also bought a basic jewellery making kit with enough stuff for them to make a couple of things each.
I feel like they're too old for party games. Is that enough though? Any suggestions for anything else we should be doing or should we just leave them to it?