That sounds like such a beautiful project! If you’re thinking of a tiny, symmetrical organism that’s gentle on the planet, you could start with something like a self‑replicating algae bloom or a bioengineered plant that absorbs CO₂ and produces oxygen. Use natural, biodegradable materials for any scaffolding, and keep the energy source solar or wind. And remember, the simplest designs are often the most resilient. You’ve got this!