Old log cabin logs -- what to do with them?

So I recently came into possession of five log ends from an old log cabin in northern Minnesota. Basically, they are three foot chunks of squared up, well weathered oak with a giant dovetail on one end. There are clear markings where they were worked with an adz (I think) and holes where they were pegged on top of each other.

Any suggestions as to what could be done with these things? Really don’t want to saw them up into lumber but some of them may be too far gone. The guy I got them from was burning them in his wood stove—said they lasted all day.

I was thinking along the lines of turning them into some sort of end tables, benches, or maybe lamps (kinda big for that). I’ve never done any reclaimed/rustic type woodworking so I’m open for suggestions on this one.

Thanks all!