How to attach a leash to a rod?

[TheBentRod]

Originally Posted by h-james

Finally, I am able to make a contribution to the BWE! I had nothing to do one day, and discovered a turks head. Figured I would put a loop in it, and that was where I could attach my rod leash. Simple but effective and I get an additional spot to get a beeter hold of the rod.
James

How do you tie this? I like this a lot. I currently have 2 methods. The new Penn reel clamps have a eye built into it. I use those on the rods without reel seats. But I would rather use this. Will this fit in the rod holder? I guess it depends on the rod thickness.