Me and my friends do every year Halloween party at a friend's apartment (in my country do not really celebrate Halloween ... so we do not find too many things). But we thought to be higher this year specifically, and more decorate the house and as we have a small terrace, we can not do much outside. So I would like to ask you: How can we decorate the terrace strangest? I know I have not written too correct, because I do not speak English.