create a function to store the mouse clicks and redraw from the mouse clicks in turtle.

def draw_square(t, sz):
    """Make turtle t draw a square of with side sz."""
    for i in range(4):
        t.forward(sz)
        t.left(90)

def draw_poly(t, n, sz):
    """Make turtle t draw a regular polygon of n sides of length sz."""
    for i in range(n):
        t.forward(sz)
        t.left(360/n)

wn = turtle.Screen()
wn.bgcolor("lightgreen")
wn.title("Alex meets a function")

tess = turtle.Turtle()
tess.color("blue")
tess.pensize(3)

size = 20
for i in range(15):
    draw_square(tess, size)
    size = size + 10
    tess.forward(10)
    tess.right(18)

wn.mainloop()