Draw a horizontal line 6 inches long. Mark the center point (3inches). Draw a vertical line of the same length through the center point. You can choose any even length that works for you. Use pencil.
With a pencil, mark off every 1/2 inch. You can lightly pencil in numbers like an X-Y axis if it will help you, but you do not have to.
Use a ruler to draw a straight line from the farthest point on the left (-6) to the first notch above the center point (1).
Use a ruler to draw a straight line from the second notch on the left (-5) to the second notch above the center point (2) as shown in the picture.
Use a ruler to draw a straight line from the third notch on the left (-4) to the third notch above the center point (3). Are you starting to see the pattern?
Draw a line from the fourth notch from the left (-3) to the fourth notch above the center point (4).
Draw a straight line from the fifth notch from the left (-2) to the fifth notch above the center point (5).
Draw a line from the sixth notch from the left (-1) to the sixth notch above the center point (6).
Now all you have to do is repeat the process. If you feel a little confused, just turn the paper so it looks the same as when we started and repeat the previous steps.
Keep on repeating the process.
Once you have added all the lines you have an astroid. Now we have to make it look even more interesting.
Choose two contrasting colors of colored pencil or marker and fill in your shapes.
For added visual interest you can shade some areas lighter or darker.
Here it is completely colored in. Notice how the straight lines have created the illusion of curved lines.
If one is not enough for you, you can try creating another astroid in the background using the same steps as before.
You can also alter the length of the lines and the spaces in between.
Here is what I came up with. You can create a series of astroids that join together, or you can draw multiple astroids of varying sizes across your paper.
I chose to cut mine out and set it on black construction paper.