Ideas for 30th birthday party - chocolate fountain, shisha hire, candy floss machine - need ideas please!?

I feel that a chocolate fountain is a bit 'old' now. I love the idea of having a small shisha/hookah pipe tent area in the garden. But I'm stuck for other ideas. My house isn't mive and neither is my garden - plus it will be at the end of October, though I AM planning to have a tent/marquee/gazebo area in the garden. Any ideas for party craziness very welcome! Thanks.