Yes completely agree that a sleep over is not appropriate! I was thinking a PJ party theme - so kids come in their pjs. We can do a bit of nail polish etc and then some games and then pizza dinner and home.
Love the other ideas - esp the Hello Kitty as she is very keen on that. What were your ideas for games etc?
Ahh, sorry I misread what you said!

Games, I was thinking pass the parcel, maybe a pin the tail on the donkey type of game (but not a donkey picture, ITMS!), a pinata. I will also have a hat decorating activity, making some cardboard hats for her tea party, with glitter, sparkles, ribbons...and some dancing, maybe musical statues or something, that's probably enough, I hope!

How about pillow fights, sleeping bag races (like sack races), goes with the pj theme!