I didn't make it. I just bought it.

What I don't like about it, just from the constructional POV, is that it doesn't have an inlet of fresh air right over the cup, like the normal mouthpiece has. I would think, that this could hinder a proper smoke development.

I think that's because the bubbler is actually intended for use on the  Mr Bald 3 and not the T.

And also that you cannot take it apart...

Attached a pic of it.