Seven months into the legal, commercial sale of marijuana, Colorado's pot shops come in every variety. Some are grungy, with flickering green neon signs and peeling paint. Others are clean, trendy, and professional, with staffers discussing available products as hipster baristas talk about high-end coffee. Pot-laced products including candy, baked goods, oils, butters, drops, and drinks attract those who want a high without the negative health effects of smoking. But edibles have their own risks, and Colorado is finding them hard to regulate.