When I write actual letters, I like to use homemade letterhead. I have some of various kinds, but I just made one for the Spencer Rifle Company. I'm not trying to duplicate any actual letterhead; this is just for fun. It's set up to print in landscape orientation, then I cut it in half on a paper cutter. That works well since I rarely write long letters. In this case, the features were from scanned advertising, so at least it has somewhat of a right appearance. Again, in not duplicating any actual letterhead or trying to match the paper type or anything.
I'm attaching what I made in case anyone else is interested.
Griff