What would a tree look like if it had steel bark?
Artist and DIYer Jimmy DiResta's answer looks something like the above.
In this project, DiResta cuts up steel bars, welds them around a walnut slab, then grinds them flush to create a beautiful blend of wood and metal.
What's even more stunning is that DiResta makes this process look so doable. Though you'd obviously need a welder, no other specialized equipment is needed. Patience appears to be the biggest requirement.