I made my first test batch of DIY flock (material to create foliage color/texture in gaming/modelling terrain) and it seems to have come out pretty well. This is sieved sawdust, acrylic paint, and a little bit of dish soap mixed thoroughly. I'm not exactly sure what the soap is for, but all of the tutorials I watched used it. I assume it's to prevent clumping, or perhaps to lower the viscosity of the paint to get better coverage? This was pretty easy and cheap to do. I'll need to make a lot more of it, and in different shades to create a blend so it's not all monotone.