Walmart offers the Jurassic World Kids' T-Rex Inflatable Halloween Costume for $45.99. Opt for in-store pickup to avoid the $5.97 shipping fee. (You can also pad your order over $50 to qualify for free shipping.) That's tied with our mention from a week ago and the best deal we could find by $7. It includes the costume, a battery-operated fan, shoe covers, and gloves.