I got a request to incorporate the use of a shoe to cause myself to sneeze so I decided to sprinkle baby powder in my shoe and sniff it to make myself sneeze. I also switch back and forth between sneezing from the baby powder and from taking the end of the shoe string and tickling my nose with it. There seems to be a HUGE difference between the two sneezes the sneezes where I am tickling my nose with the string sound so wet and where the other sneezes are not as strong.