My favorite minimalist pipe these days is the MM hardwood. Since they cost only seven to ten bucks, you may not expect much, but they are good smokers. The stems seem more durable than the soft plastic ones on the basic cobs. They have enough chamber for either loose tobacco or, for longer smokes, flake/coin/plug/rope. And they look to me like Danish modern furniture, especially the straight versions. And they don't have the folksy look of cobs, which I love but that bothers some people.
They also make good giveaway pipes for sharing a pipe with a guest.