After reading about the baking soda and paint trick to make mud on military models, I thought my snow plow needed a touch of mud on the interior walkways. After all, if its snowing in the mountains, its probably raining in the lowlands where the plow is stored.
I took some old Polly Scale mud color mixed in some baking soda and stirred. The mixture turned out pretty good looking, so I stippled some around.
After the mud had been wiped off, so it just stayed in the wood grooves, I applied another layer right around where I’m going to have an open door, and a MOW guy standing. I then sprinkled the mud with more baking soda and blew the excess off to create the illusion of melting snow.