Walmart offers the Nostalgia Kettle Popcorn Machine, model no. KPM200, for $34.88. Opt for in-store pickup to avoid the $4.97 shipping charge. That's tied with our mention from three weeks ago, the best deal now by $21, and the lowest total price we've seen. This oil popper stands 19" high and makes 10 cups of popcorn at a time.