A two person applicator is a Tepi. The people in the forest use it for ceremonial rapé sharing.
There are an endless variety of models and possibilities. In the old days the indigenous used a long bamboo or reed to blow, as became famous from anthropology movies. Nowadays they are usually a bit less dramatic but depending on the quantity of medicine and strength of the blow, the rapé experience can be very strong.
Do you like a more open mouthpiece that gives a stronger blow, or a narrower one for a more gentle experience? As with the Kuripe, there’s no formula for the perfect pipe: it depends on your personal preference. If you are new to Rapé, it will take some time to figure out what works for you.