More ideas from Michal
if you paint yogurt on rocks it will encourage moss growth. i wonder if you could use that technique with this project?

How to grow moss letters! Mix yogurt, water and live moss in a blender, then paint onto a wall. Moss will grow in the shape of whatever you painted. Just remember to spritz it with water every once in a while to keep it alive. actually LOVE this idea!

Good idea for multiple reasons: 1) equisetum grows so quickly and make even the newest newbie of a gardener feel accomplished and happy, 2)  equisetum can get out of control and this container will prevent that from happening, 3) creates privacy and covers up some unsightly areas

Equisetum grows quickly and makes even the newest gardener feel accomplished and happy, equisetum can get out of control and this container will prevent that from happening, creates privacy and cover up unsightly areas.