Fun herbal medicine making suggestions?

I want to invite some girlfriends over for an herbal medicine making tea party. None of them have experience with herbalism and I’m pretty new myself. I’ve made some syrups, herbal teas, bath salts, salves, infused oils, etc.

I feel like elderberry syrup and fire cider are the most well known and a lot of people would actually use it. But it’s March now. What would be a good practical, beginner friendly thing to make in a group and usable/ relevant for spring?