Well there are actully a lot of things you can do. Here are a list
For a few people like no more than 10
3. cedar point/six flgs (if you have alot to spend, you could have them pay for part)
4. put-put golfing
5. Lazer tag
Here is for a larger party at your hosue or a hall that you might want to rent (themes)
1. Glow party
2. Camp out
3. favorite singer (everyone dresses up like there fan singer and you could have kareoke and have them sing a song by them.
4. your fav cartoon ( like spongebob I hate him but most people like him, power puff girls, cartoons like that.)
5. BBQ you could have one inside like make a fake cardboard BBQ and get hot dogs and hamburgers and get like things that you would do for a BBQ.