Hi Vapors, As a vapor, you must adore other’s Vape pen tricks. So this thread we will discuss Some Tips on How to Perform Jellyfish Vape Trick. Keep on vaping. How to Perform Jellyfish Vape Trick? The jellyfish involves blowing a single O, then blowing the second one through it. The rings pull each other and expand out to create an effect that resembles a jellyfish or mushroom cloud. To keep the first ring from getting too far away before you can blow the second one, use your palm pushed toward the ring to alter the airflow and keep it hanging around.