[K20aCTR]

Today at school I was walking in the halls and passed a class with all the beakers and graduated cylinders laying out on the tables. I quickly went in and somehow managed to get away with a 2 foot tall graduated cylinder. I would love to turn this thing into a crazy bong but I am not sure where to start. I have taken a few other small beakers and have practiced drilling them with a glass cutting drill bit but each time, the beaker breaks when I fully penetrate through the glass. Actually, its call Pyrex so I dont know if that changes much. Do you guys have any tips on how to convert my 2 foot tall graduated cylinder into a badass bong? I dont want to mess this one up!