After recently purchasing a couple of hammocks, I went back to look at purchasing some straps to assist with fastening to a tree. Was shocked that the strapping materials in a kit cost way more than the 2 hammocks I bought put together. So, I set in to make my own!
1st you need to find your local outdoors store that sells climbing ropes and strapping material. As you see in my materials list, I purchased some hollow strapping 1" width. It will be your judgement on the length you wish to purchase, but as I bought, 2ft is sufficient for each end, and enough to go around the back side of each tree to protect its bark and/or trunk from damage.
Hollow strapping material (2ft per end = 4ft Total)
Paracord (however much you need) I am using approximately 11-12ft as explained further in instructions.
Carabiner x 2 (durable to withstand weight limit; NOT the cheap $ store kind)
1. Cut your strapping as mentioned above, into approx. 2ft pieces. If you pinch strap together you can see how this material is hollow. Once separated, lightly singe with lighter to prevent further fraying.