Klown Klub of Mecca, an affiliate of the International Shrine Clown Association, holds the fourth annual New York Shriners Circus at German Masonic Park, Tappan, N.Y., 7:30 p.m. Also Friday, at noon, with half-price admission for seniors and free to veterans. Shows continue over the weekend including Saturday at 7:30 p.m., and Sunday, 1:30 and 5:30 p.m. Special attraction: a death-defying motorcycle cage, bouncy rides, pony rides, circus food, and novelties. (845) 523-3123.