I love this idea! It's made out of 2 x 4s. Not only is it way more affordable than buying but it can be sized to fit your space. I saw something similar in the Pottery Barn catalogue for thousands of dollars.
Could easily be made with hollow box uprights, run the water tube through one and the top hollow box with a PVC tube that you drill holes in for the water to run out. Faux paint it to look like copper, really pretty easy.