To finish my counter-height dining set, I made counter-height stools. These stools were very inexpensive. If I remember right, the materials cost me around $25 per stool.
The only modifications I made to Ana’s plans were that I did not use her diagonal design for the leg support, and I used 2×6’s to make the seat.
The stools have been great, but they are a little uncomfortable. If I were to build them again, I would angle the back of the stool for more comfort.