Just let it dangle. It will totally not get caught on the toolhead. Probably.
                                                                                            - Peopoly, cca. MMXXIII

Print in the included orientation. No supports needed. Brim will help if it gets knocked over during printing, but it shouldn't be.

Step file included for customization.

There's not a lot of vertical space on the PTFE input atop the toolhead, so the chimney just kind of loosely sits atop it, but tension in the tube keeps it in place. 

One cool thing to do would be to have the chimney also act as a replacement for the god-awful collet clip (the one that always goes flying every time you have to undo it) but I'm too busy with other stuff to tinker with that right now. Maybe a few more filament swaps will get me there.  \_(ツ)_/