It's called a netti pot. The big problem is that if you are all stopped up and trying to flush your sinuses all of the water runs down the back of your throat. Then it is like waterboarding.
A lot of similarities here.
Both have the last name Jones.
People love/loved both.
Use/used their words to whip people into a frenzy.
Both had/have a unique talent to get people to drink Kool Aid.