I just took a class on creating a terrarium by Jonathon from Green Sinner. I it was a lot of fun with just enough dirt to get a newbie like me interested! The class was on Sunday from 2-3 PM at Marty's Market and only had 4 people so everyone received a lot of input from Jonathon on our creations - hopefully more people will attend future sessions.)
From my earlier review of GS you know that I'm not the best at taking care of plants :-( so I thought I'd start with something small that could exist on just a little bit of water and indirect sunlight & inside light.
The plants for our terrariums were cute and reasonably priced...the accents (colorful sands, sea shells, stones & rocks, etc.) were very pretty and our time spent playing in a small bit of dirt was great.
I highly recommend Green Sinner for flower/plant needs for events and to give "just because." I do wish that there was more of a selection at Marty's Market of plants to pick up on the fly, though their completed terrariums and pots are beautiful.