What comes to mind when you think of a Russian national icon? Vodka, matryoshkas, bears? Fyodor Dostoyevsky? Alla Pugacheva? Cheburashka? Surprisingly few people, including Russians themselves, mention babushkas, the omnipresent grandmothers in head scarves.  Yet their influence is huge. Red Square huge. Katyusha rocket huge. So it pays to know how to please them...