Very ingenious there.

I can see how the nail would help hold the pipe in place. And making them only about 3" thick is pretty nice too. Low profile concrete so you don't hang on it somehow

I was impressed with that design because I had tons of 1/2 inch pvc. Now I know what to do with it. I did add to each end of the pipe, some fake Xmas tree limbs. They were crammed into the end. Probably more to get hung on, but I don't feel like I'm fishin unless I get hung once or twice. I don't know if this will spice it up more, but it sure looks pretty. Thanks for sharing your idea.