Concentric Circles with Grasshopper?

e.g.:

#! python 3
import rhinoscriptsyntax as rs
import random

r=1.2
rs.EnableRedraw(False)
for i in range(20):
	rand = random.random()*360
	cir = rs.AddCircle([4*i, 0,0], r)
	rs.RotateObject(cir,[0,0,0],rand)
	r*=0.95
	angle = 0
	for j in range(1, 9*i):
		cir2 = rs.CopyObject(cir)
		angle += 360/(9*i)
		rs.RotateObject (cir2, [0,0,0], angle,[0,0,1], False)

yields: