So far I have set this up with one rope attaching at the bottom of the branch on the higher side (left side of photo) and attaching the rope so it swings from the side of the branch on the lower side (right side of photo). I tied them the same way but through the lower side over the branch. This is almost but not quite adequate to make the it swing straight. Any thoughts out there? I of course could build a frame or find a better brach but was hoping for an elegant solution using the rope only.
I ended up getting this Bucket Toddler Swing as it was the cheapest decent looking one on line at the time. Pretty happy with it. Very solidly built.