Get these 13 styles of Halloween inflatables as low as $14.98 at HomeDepot.com. The 3.5-foot sizes are $14.98 and the 5-foot sizes are $29.98. This is the lowest price we usually see each year, and they often sell out closer to Halloween. They self-inflate and include tethers and lights. Free shipping is included, but currently some styles can only be shipped to your local store instead of your home. Sales tax is charged in most states.