From the outside, this place in Rice Village may not look like a chocolate shop, with its display window filled with toy dolls, but it sure smells like one when you get inside. The shelves are filled with chocolate powders and mixes and oversize glass jars of chocolate-covered coffee beans and peppermints. But a giant display case filled with nearly every variety of bonbon ever devised is the real star. For the last five years, proprietor David Heiland has boasted that his shop is the only one in Texas to sell Leonidas Belgian chocolate, one of the world's finest, which he imports fresh every week. But if that doesn't make you drool, maybe the butter creams or chocolate-covered potato chips will.