After I made that gm_flatgrass thing, I decided to make a headcrab. I expected it to be horribly hard, and that I would fail multiple times before succeeding. I was wrong. This is my first attempt, and I deleted only ~3 blocks while building it. I hope you like it, and if you haven't yet, why not check out my other buildings? (You don't have to if you don't want to, though). To use it, just place it like any other MC edit schematic, just DON'T ROTATE IT! It might ruin the small claws on his beak, and maybe stirr his inside up a little. (Maybe not though, not tested).