[header] How to have good games for your own slumber party [title] Have a scavenger hunt. [step] A good scavenger hunt is to have a whole lot of things to look for at a shop. But, it requires no money. 
So like simple things like a piece of paper, business card, paper towels (at a food court or something) a loose button etc. Also ones to do at night are: glow in the dark scavenger hunt.