I don't know how badge icons come to be, but..I thought of a few more...

Veganic/Stock Free

Rain water catchment/rain barrels

Aquaculture/ fish keeper~I keep goldfish in rainwater tubs, as mosquito control, and use the "used" fish water on the plants as a weak fertilizer.

Square Foot Gardening

Interplanting~mixing different species together for symbionic weed free growing

no till planting

humane manure aka organically fed pet rabbit manure, or organically fed pet chickens (factory farm rescues), goats, etc maybe put as Farm Sanctuary.