Bubblers are the perfect pieces for travel as they usually have a smaller and far more portable size. They come in a variety of styles, such as hammer bubblers, egg bubblers, or mini bubblers. A bubbler easily cools down smoke, adds water filtration, and offers a much smoother and cooler smoking experience. If you are a bubbler collector, Waxmaid Round Fab Egg Bubbler, Frosted Yoshi Egg Glass Bubbler and 3 Inch Silicone Glass Mini Bubbler will be your good choice.