Pipe screen is a good idea. Like a splatter screen when cooking bacon.
510 mouthpiece
I'm kinda surprised there aren't more out there. Seems like the problem has been around since ecigs were invented... or at least drip tips. Thermovape cera had a plate in front of their mouthpiece, which forced the air to make
three turns. For everything cera wasn't, that was a cool design. Just putting a metal plate in a drip tip with ample airflow around it would totally solve the problem.