Create 100 turtles with random colors. They all start from position (0,0) and start doing random walk. Also draw the bounding circle with the color of the farthest turtle. Video
The original Koch Snowflake is based on triangles. Draw quadratic Koch snowflake that breaks a line into 4 smaller pieces of 1/3 of the original length as shown. The following
The bar in the middle seems to get darker from left to right. Actually, the bar as the same brightness. Write a Python Turtle program that draw this illusion called