I know I may be two weeks late on this post, but I made my own fogger and I absolutely love it. Just bought an ultrasonic humidifier from walgreens, a plastic adapter from hardware store, rubber tubing and aquarium silicone. Thing holds more water than repti fogger or zoomed, and humidifiers last forever so I assume it will last me a very long time. Plus it's pushes out cool fog so as to not burn amphibian friends
Just thought I'd post if anyone was interested