The occasion: Bat Mitzvah Role: Guest The look: Karen Stoller of West Bloomfield models a long, charcoal gray stretch velvet sheath with a match- ing bolero jacket by Mon- key Wear, $120; dragonfly hairpin, $8; butterfly lapel pin, $28; gray pearlized choker $125; and silk beaded purse $250; all available at Guys N' Gals, West Bloomfield.