We had an old tea jar that lost its lid, so I made it into a terrarium. Since the top was open I opted for succulents, which like the dryer environment.

I plugged the tea jar spigot hole with a silicone wine bottle stopper, which worked perfectly.

I wanted a two layer layout, with the back plants visibly taller and higher than the foreground plants, but I struggled with soil depth and the root systems of the plants I purchased, so it didn’t quite fit my vision.

For the non-plant decor, I raided my childhood rock collection, adding some amethyst crystal, pyrite, fish fossil, and two carved stone figures. Although the container and rocks were no cost, the soil layers and plants added up. I do have left overs that can be applied to a different project, though.
I do like the cactus color pop, and that I have a spiral feel to the layout. Now to see what lives.