I made these bar stools thanks to a photo that inspired me. I didn't make any plans, I built the stools as I went along. It's a very easy project to do, all it takes is a little imagination and elbow grease.
The stools are fixed with nails and screws. I recommend that you hold the stool securely in place when nailing or screwing, it may be helpful to ask someone to help you.
I've used one single wood pallet to build the two stools.