In other words, a pot cookie being passed around a high school cafeteria no longer will look so innocent, giving parents a way to identify marijuana edibles without smelling or tasting them. The stamping requirement comes in addition to exhaustive labeling and packaging rules that include childproof zippers and lids, along with warnings that the product should be kept away from children and not eaten before driving or while pregnant or nursing. Candies and baked goods may be simple to stamp, but the label requirement gets a lot trickier for bulk items such as granola, or marijuana-infused sodas or powders that can be dissolved in water. At BlueKudu, which makes marijuana-infused chocolates, owners had to buy new molds for a line of candy bars that include flavors like mint chocolate, toffee almond and coffee crunch. Company founder Andrew Schrot said that when he started his company in 2011 for medical marijuana customers, his pot treats looked like any other chocolate bars. Starting next year, the state also will ban any edible marijuana products in the shape of a fruit, animal or human — in addition to existing bans on the use of cartoon characters on packages or other images deemed attractive to kids.