I have a Savinelli 601 churchwarden with a billiard bowl, a fully arched stem, and no filter, that seems to capture the essence of the shape. I don't see them for sale much, but I think they are still around. If you want a small churchwarden, EWA sold by Iwan Ries makes good ones at low prices with removable stingers. I don't own one, but people seem to like their MM long stem pipes a lot. Definitely get a pack of churchwarden pipe cleaners to save hassle. I do have to make a point of smoking mine, since they are a little different experience in handling and most smoke them seated (mostly). In a chair with arms, you really exert little effort.