I tried to modify the glazes effect by combining of two colors of glazes. It had a satisfactory results. The application techniques are dipping and spraying. But the effect was little bit unpredictable because it depends the feel factor when you glazing. Different in thick of glazes make the result will be different.
To make rough textures of glazes don't use the spray gun, you just can use the simple manual spraying for killing the insect. Do not spray evenly for a good results.