We rescued an old wall cabinet from a guy's garage while checking out something else he had listed on Craigslist. After a lot of scraping and cleaning, it looked like this.

We turned our drop-in sink upside down and used that as a template for the hole. The hole was cut with a jigsaw inside of the template line. Plumbing pipe and fittings were cut at the hardware store for the legs and shelf.

We attached it to the wall with the plumbing flanges and hooked up our plumbing lines. I added some barnwood pieces to act as a storage shelf, resting on top of the pipe.