Bucket O' Gravel - 16oz. Neon Purple- Gravel art is a unique medium for crafts projects that will appeal to all ages. With our vibrantly colored gravel youll be able to create a variety of lovely crafts with simplicity and ease. Sold in buckets of 16 oz.Features: Single Color, 16 oz. of Gravel, Plastic Container, Variety of Colors. The first step is to trace or draw a simple image, shape or form onto a stiff piece of poster board or cardboard. For younger children, draw basic shapes such as a circle or triangle. Older kids may want to choose to draw their own pictures. Next, trace the lines of your image with glue, and press a piece of yarn or thread into the glue. This will define the outline of your pattern.