So you want to test your MDMA? KnowYourStuffNZ DMT Vape Pens: Risks, benefits, and therapy Vape pen confiscated from Douglas High School students contained both traces of Fentanyl and Ecstasy Oil Vape Pens Vape pens laced with fentanyl, MDMA confiscated from Douglas High School Mdma Vape THC Vape Pens: Health Effects and Safety Insights A vape pen confiscated from Douglas High School students contained both traces of Fentanyl and Ecstasy, also known as Molly (MDMA)., These were found in saliva samples collected from the students.,