Walmart offers the Taste'n Fun Deluxe Marshmallow Factory for $9.13. Opt for in-store pickup to avoid the $5.99 shipping charge. (Amazon charges about the same with free shipping for Prime members.) That's $11 off list and the lowest price we could find. It includes a variety of extruders, skewers, molds, and containers for creating marshmallow desserts.

Update: The price has increased at Walmart; however, Amazon charges $8.90 with free shipping for Prime members.