• Grass blocks - I couldn't be arsed to Blast Mine to get grass. Silk Touch isn't that common after all.
• Mycelium. Grass + a dump of shrooms?
Should be possible with mcMMO
- Vines and Cobble into Mossy Cobblestone
If we go to mcMMO (Herbalism), you indeed can get grass AND mossy wobble, by applying a few stacks of seeds on dirt or stone. I'm just too lazy to spend hours to get a few mossy wobbleys and greengrasses...
I almost forgot! The horse armor recipe may be to taxing on the diamond because if the horse dies, then the armor is lost! D:
Then use iron or gold
Aye. Diamond looks shit anyway, gold for the win! Nobody needs gold, right?
EDIT: I killed a whorse twice, didn't lose the armour. Your argument seems to be invalid.