Want to throw the ultimate Halloween party? We've got your back. (Especially if your idea of Halloween includes tons of neon lights and dozens of animal costumes.) What's a Halloween party without games?! To keep guests entertained, set out a couple packs of Instax film, along with an Instax camera, and let everyone take candid shots of themselves in their costumes. (A way to make it better? Set up a Halloween party backdrop!) Set up a bulletin board nearby as well with some thumbtacks...