Bubbler Pipe Materials
Like with bongs, spoon pipes, etc., bubblers can be made of all sorts of different materials (glass, silicone, plastic, wood, and more). However, choosing between them will often come down to some basic requirements. For example, glass is popular because it is believed to provide clean, consistent hits and minimal maintenance. However, it is breakable. Wood and plastic, however, are easier to keep from breaking but may affect the flavor, and cleaning might be more difficult. Silicone fits somewhere in the middle. What you choose ultimately depends on what you prefer or need.
Bubblers with Extra Features
Bubblers can range from the most basic concept (bowl, water chamber, mouthpiece) to adding unique or helpful features. For example, some bubblers might come with grips on them. Other bubblers might feature percolators for better infusion or ice catchers that make your hits significantly cooler. Some bubblers might come with color changing glass that will change as the bubbler is used. Some of these features, like the percolators or ice catchers, will affect the performance and make hits smoother or more powerful. Others, like color changing glass, are more cosmetic.