Marijuana can be a diversion full of rituals, but when your usual tools are out of commission or missing in action, it’s time to get creative. And while necessity may be the mother of invention, “I’m out of papers” or “my pipe broke” can inspire even the most ham-fisted cannabis fan to tap into their inner Thomas Edison. There are many time-honored ways to get high in a pinch, and none of them require any sort of higher education or engineering skill. Which is good, because engineering school is expensive. Here are five of the most popular tricks for smoking weed when your normal tools aren’t available.