The previous owner of my house (in rural Wisconsin) built some simple-but-effective wood sheds. They're old corn crib roofs, held up on 4x4 posts. Since they're not walled in you can access wood from any side (no need to move stacks), there's plenty of airflow, and the roofs keep out the rain and snow. I may put up some chicken wire fencing between some of the posts to keep dry leaves from blowing in.
Well "rustic" is probably some of my best work! We run a farm as a hobby/side hustle/retire-early dream and I always enjoy doing things the "old" way. Lots of rough hewn lumber and timber. I got an ox even ha!
Of course, their appearance is... rustic.