I started a community wiki (everyone can contribute) on what to do with left over herb stems here:
I posted one idea that I thought was useful to people and would love to have others share their thoughts. I also thought it would be a good exercise for our community to see who we can collaborate on topics in which many of have great ideas and experience to share. Look forward to seeing what you post.
All you need to do to add your ideas to the wiki is simply click on the "Edit" button on the right at the top of the wiki . See screen shot below: