Costume ball and dinner. Fasching is the last celebration before Lent begins on Ash Wednesday. Join this German celebration of Mardi Gras without traveling to New Orleans. Ham dinner starts at 6 p.m. followed by a dance to the music of Fritz's Polka Band at 7 p.m. and a costume competition during the evening. Cost: $6 children under 12; $18 adults; $10 dance only. Call 735-5882 for tickets.