SourcePlus via eBay offers the Apontus Portable Nylon Rope Hammock with Carrying Bag in Blue, model no. 40327-S, for $5.75 with free shipping. That's $14 under the lowest total price we could find for a similar hammock elsewhere, excluding the below mention and other eBay vendors. It secures with steel rings and hanging ropes and features a weight capacity of up to 220 lbs.
A close price: GearBest has a similar hammock in Grass Green for $5.85 or Orange for $5.95, both with free shipping.