For those of you who are concerned about sharing a studio blowpipe or school pipe, Steinert Industries has a solution for you.
It's called the Slide on Mouthpiece. It fits our .75 diameter standard mouthpiece, that is on most of our pipes. It's made of Delrin (an acetal plastic) and contains an internal O-ring to prevent air from escaping. The Slide On is dishwasher and alcohol resistant. It may be cleaned as often as you like and designed to be used repeatedly by one person and / or disinfected between use by multiple people.
Order yours today featured in the Blowpipe - Accessories section.