The Erlenmeyer Flask is the quintessential conical-shaped laboratory flask that every Mad Scientist must own. No Bunsen burner? Fine, use this Erlenmeyer Flask to stash your pens and pencils, or, a flower while it sits in your work cube. Fill it with aquarium gravel and house a beta fish. Mix up a concoction! You could rest your toothbrush in it if your housemates would just leave you a little space in the bathroom. Our flasks have graduated markings for scientific or cocktail mixings if that is your need. The Erlenmeyer Flask will always rate as the most unique gift for the geek in your life.