flue pipes, optimized for 3d-print

Since a while I'm working on flue pipes where the labium-part is 3d-printed and a tube is used as a resonator. I came up with many designs. These two are particularly handy for 3d-print. You might find other files you like at https://github.com/benjaminwand/3d-printed-labial-pipe
and there is an instruction video how to use those files:
https://youtu.be/g_tp1z9HByQ
Yes, they work https://youtu.be/ipXVnXELGGY

Feature requests are welcome.