The Spiderweb Hammock appears to be two stumps supporting a thick, white net that looks like a spiderweb in the middle. The net resembles a hammock by the way it is held open with two horizontal logs on either side and droops downward in the middle. There is only one version of this item.
Although I didn’t find spiders in any of the webs, I later did a little digging about the webs themselves. Without knowing how to proceed, I did a Google search for the words: spider, web and hammock. To my surprise, hammock web was actually the official term used for this type of web.