I have an Ed's TNT stem and a WPA. Both are great. They are unlined but easy to clean.Although I haven't acquited a TinyMight one yet, I swear by Ed'sTNT wooden Solo stems instead of glass when I'm out and about.
Although honestly I haven't used the stem I quite a while. I just have a lot of glass ones that I prefer. And I take those out of dog walks and hiking. Probably tempting date but yolo, I guess.