Good party games?

[CheerfulYank]

DS will be 7 next month and wants to invite his whole class plus cousins and a few other friends. If everyone comes it'll be 25 kids or so.

We have a big yard and plan to just let them get on with it with a trampoline, bouncy castle, water balloons, possibly a slip n slide, etc.

I do want a few games in a corner of the yard that the less rowdy kids can play if they want. I saw directions online for a huge Jenga set that looked easy and an outdoor tic tac toe game using painted rocks...can anyone think of anything else along these lines? The party has a loose Lego theme so there will probably be a Lego building station as well. I don't think we'll do much as far as organized games go but if anyone has any ideas for a sort of independent game/activity, that would be great!

[Scousadelic]

Hopscotch? You could just chalk the squares on the ground or use flagstones

[CheerfulYank]

That'd be fun, thanks. :) Could leave the sidewalk chalk out as well.

[BlueChampagne]

Basket full of dressing up clothes?
Skipping ropes?