I have one that hangs from a live oak limb. It's made from pressure treated 4x4's and deck boards. I did not build it, but it has been there for over 6 years and I was sitting on it this morning. It collects leaves and acorns which accellorate the rot.
I imagine it is quite heavy and somewhat of a liability as someday it will fail if I don't remove it first. It has no pads but those could be obtained.
Sitting on the ground is not quite as relaxing as a swing but...your on the ground, not in the air:thumbsup: