Lol that "fuzzy green coat" is the best kind of terrain you never meant to make. My old flour and glue mountains would just turn into weird rock shapes, but you managed to grow a whole ecosystem. Congrats on the free moss, I guess, even if it's the kind that makes you sneeze from across the room. Bet it looked way more real than anything we tried to sculpt back then.
The "free moss" @wade_hall mentioned is totally familiar. My old flour terrain grew a weird fuzzy layer too, and it always made a mess. Somehow those messy projects are the ones I remember most fondly.
Yeah, @beth722, that fuzzy layer really does stick with you. I mean, it's weird how the stuff that goes wrong ends up being the part you remember years later. The perfect things you plan just blend together, but a full-on mold ecosystem on your craft project? That's a story. It's kind of cool in a gross way, like the project took on a life of its own. Makes the whole thing more real, even if you're just cleaning green fuzz off the table.