researchers describe the discovery of a 3,775-year-old log in Saint-Pie, Quebec, Canada. This stump was unearthed during a 2013 project that aimed to identify sites for so-called wood vaults ...
This kind of ... a few extra logs for the seat. It's really easy to put together. Also, the cuts are easy. You could make it even better by giving the seat springs. That would turn it into a box.