We have had a lot of fun at Halloween. We have no children of our own, but love to have others over. One year we did a Halloween party and started a new tradition.
When Fear Factor was on we made a game of it. One of the things we did was put some fake hands, spiders, bugs, eyeballs, etc. into a slime and the kids loved it.
Here is how we made the slime. Mix 1 16 oz. box of corn starch with 2 gallon of waters. Bring it to a boil and reduce the heat let thicken some, remove from heat, cool. If you want green slime add green food coloring. If you want deep colors use the cake decorators color pastes. We do not suggest red as it will be too much like blood and not a good idea. You will want to put your stuff in when it is almost cool but still not real settled. You don't want it too thick so if this is real thick mix it with a wooden spoon so that it won't come all out at once.
The object is to get an item but as little slime as possible. Make this over night as it will take a while to cool. We let cool some and then poured it into a 5 gallon bucket. If you have one of those plastic witches pots those would be cool too.
Here is another great idea for younger children. We did a large party that we used spaghetti for slime but that gets pretty gross. You should cook your spaghetti and add oil to make it so it doesn't stick. Your items will be messy too. You want to chill it over night and keep it cold for a hard to put in your hand experience.
Either way you have a neat idea that kids love. If you have a lot of kids, you can use those spider rings, and things of that nature. You might want to hide an item that if they get it, they will get a special prize.