Glass & Botany
1. The Stratified Pickle Jar Terrarium
Reclaim a wide-mouth 1-liter glass jar. Build an enclosed miniature water cycle: a drainage bed of coarse river pebbles, a thin charcoal barrier to sweeten standing water, potting soil, and cushion moss scavenged from pavement cracks.
Longevity: Self-sustaining moisture cycle lasting months with minimal misting.