Washington and Colorado are currently the only two states with laws supporting recreational marijuana use. Next week, New York is expected to join 22 states, along with the District of Columbia, that have legalized medical marijuana usage in some form. Medical marijuana has been legal in California since 1996. 

But because recreational marijuana retailers can't legally sell edibles in Washington until July, only customers wielding medical marijuana cards can order Samish's weed-laced dishes such as truffle popcorn, peanut butter and jelly, and a Vietnamese pork banh mi.The Samich bus is the latest example of businesses that are sprouting to cash in on the growing pot industry. It is a promotion for Seattle-based Magical Butter, a company that sells a kitchen appliance that creates cannabis-infused cooking oils, herbs and spices at home.