Hasbro via eBay offers the Nerf Zombie Strike Biosquad Zombie Eraser ZR-100 Blaster, model no. B0310F000, for $9.99 with free shipping. That's tied with our mention from last July and the lowest total price we could find by $11. It fires Zombie Repellent fluid or Zombie Strike darts, and includes a can of Zombie Repellent fluid and three Zombie Strike darts.