18 pieces black shoestring licorice (2 inches each)
In a microwave, melt chocolate chips; stir until smooth. Stir in 1 cup wafer crumbs and sour cream. Refrigerate, covered, 1 hour or until firm enough to shape.
Place remaining wafer crumbs in a shallow bowl. For each mouse, roll about 1 tablespoon crumb mixture into a ball; taper one end to resemble a mouse. Roll in wafer crumbs to coat. Attach nonpareils for eyes, sliced almonds for ears and licorice pieces for tails. Store in an airtight container in the refrigerator.