Boo-tiful Balloons: Amscan Boo Air-Filled Banner If your trick-or-treating days are over, reach for this Amscan Boo Air-Filled Banner ($13). Decked out with inflatable letters and spider details, this option will be a great addition to your Halloween party. Image Source: target.com Amscan Boo Air-Filled Banner $13 from target.com Buy Now