The following applies to this specific example: Conceal the natural eyebrows with Eyebrow Plastic.
Use the convex rounded side of the Derma Wax Spatula to take the Eyebrow Plastic out of the jar. By scraping it out, you already make the texture a bit flexible.
You then make the wax easier to model by applying it to the ball of your thumb and scraping it off again with the spatula two or three times.
