Great ideas - thanks
drinkmoretea - I did think of the park but it depends what time we pick them up. Was thinking of around 4pm which would be pushing it a little for the park as it starts to get dark not long after ...
Am I being a bit mean picking them up so late?
Great ideas fennel - yes, I have younger dd's and do have tents etc, I think they'd enjoy that. Like the treasure hunt idea too, although i'm not sure I fancy getting into sweet making
stinkymonkey - yes, plain paper and pens is a winner with my dd anyway, and I'm pretty sure it will be with her friends
I wish I had singstar - we have got a couple of good Wii games that dd2 got for Xmas that may amuse them for a short while ...