Love these glasses when you want more than just a cupful. Orange juice to Margarita's. Bubble glass may originate from traditional hand-blown glass techniques where artisans blow air into molten glass to create bubbles. These bubbles can be intentionally left in the glass for aesthetic purposes, providing a unique and textured appearance. Artisans and glassblowers often experiment with different techniques to create distinctive glassware. Intentional incorporation of bubbles during the crafting process can result in a visually interesting and artistic drinking glass.