We did one of these 2 years ago and it was great fun!
Did the jelly worms in jelly and had a bug infested jelly eating competition - I think they thought it was a bit too real tho because lots of throwing up involved!
I searched for halloween jokes on internet. Then I cut out loads of ghost shapes, 2 per A4 sheet of printer paper and wrote the question on one side and the answer on the other. Then I hung them on string at different heights from the ceiling (use blu tack not cellotape like i did, still got about 50 bare patches on the front room ceiling )
I filled both rooms with them and looked amazing!
Kept lights low and lots of candles in high places.
Trawled the pound shops and asda was good too. You can buy plastic covers that hang around doorframes to look like the entrance to a haunted mansion. They looked a bit crap in daylight, but by the evening with a skeleton hanging there too and some pumpkins they really transformed our front door. And only a £1!!
We got a pumpkin pinata (sp?) which they used a witch's broomstick to hit it with, they loved it!
Usual party food for the kids with a few halloween bits thrown in.
Pumpkin soup and lovely rolls for the grown ups
All the grown ups got dressed up too and it was so much fun. (I wanted to dress up as wonder woman but ds1 was having none of it!) Bought cheapy costume, pink witches dress with cobweb pattern all over, cut the bottom so it was really ragged and wore with tights, knee length black boots and floor length black velvet coat borrowed off my mum. DP wore his black suit, with a cheap set of dark red rubber wings and a half face mask. He looked very menacing!
Hope you have a great party!
I'm off to wake DP and tell him I think we should dig out all the stuff and have another one!