I never have purchased a clay, but someone posted the below site a long time ago which produces some appealing clay pipes with ebonite stems and are also supposed to be less fragile than old fashioned clays.
I had forgotten about it, but this thread reminded me. I'm wondering if anyone here has one of these:
buy Original clay tobacco smoking pipes, hand-crafted in Vermont. Double-walled bowl cools smoke, filters naturally. Colorful glazed emblem and wildlife designs. Fine gift.
lepeltier-pipes.com