A Bubbly Find: Airblown Inflatables Jack Stack If you want to go the friendly, approachable route, you'll love this Airblown Inflatables Jack Stack ($15). The four-foot inflatable is adorably bubbly and will bring a smile to your fellow trick-or-treaters. Image Source: walmart.com Airblown Inflatables Jack Stack $15 from walmart.com Buy Now