That is really cool, I like the contrast of the natural pine with the dark colors of the bottles. Isn't amazing how much cheaper small furniture projects are when you DIY.
For those interested: The side holes for the bottles are indeed 1.25 inches in diameter. I've included pics below of the side and bottom (to show how I completed the box with 1x2's top and bottom). I made the 2x4 frame it is attached to (screwed to the wall first) just the right size to slide the pine box over it, then used brass screws along the sides to attach the box to the frame.
That is stunning! I love the lights and think it will look awesome on the back wall of the bar.
I have shown it to my husband and put my order in. You say less than $50? Bonus!