Whether you agree with the practice or not, cannabis culture in America has quickly outgrown its Summer of Love stigma and gone mainstream. And with that normalization has come an insatiable demand for upscale smoking apparatuses—a demand being met by a new generation of uncannily talented glass blowers from around the country and around the world. But it hasn't always been this easy.

Degenerate Art is a fantastic 2012 documentary detailing the current state of the American glassware industry while simultaneously recounting its advent in the early 1960s and speculating on the movement's future. It features scores of interviews with some of the best blowers in the business who all seem more than happy to share their passion for the craft—and more than a few stories of police harassment. So if you've ever wondered where your glassware comes from—and the risks taken in making it—check it out on Netflix or pick it up on iTunes tonight.