Years ago I did a hand-sewn plush of an anthropomorphic marijuana leaf for a friend of mine. Now that I crochet, I decided to redo the little bud, "Herby," as an accessory. I did two different shades of green and made two slightly different facial expressions to indicate Sativa and Indica (droopy eyes).
In no way am I trying to advocate the use of marijuana. Like any mind and/or body altering substance, you should use in moderation and be responsible.