I’ve been learning to model items, unwrap the uv’s of these 3d objects, then texture these uvs and re-apply them to the mesh.  Here is the textured uv mesh of a sword, which readers of Michael Moorcock’s Elric saga as illustrated by Robert Gould will recognize as Stormbringer, the black sword.  Here is the uv mesh after I unwrapped it and textured it.

Here is the textured sword.

textured model of Stormbringer