He appears to be dirt inside a nylon stocking with grass for hair. Bug announced as we got in the car that "Dirt baby needs a hair cut mom, and some water."
So when we got home he put water in the cup and I got out his scissors.
Bug started off slowly, carefully cutting bits of the "mohawk".
As he got the hang of it, he went at it with a bit more confidence. See the fear in poor dirt babys' eyes!
In the end I think it turned out pretty good. Dirt baby seems happy with it, and that's all that matters.