Aubrey Toomsen, 7, attired in honor of St. Patrick’s Day, waves to passing cars from Ninth and Locust streets yesterday with sister Elsa Toomsen, 10. Accompanied by their father, the children also handed candy to passers-by. "He’s been wanting to dress up as a leprechaun," Elsa said of her brother. "We thought it’d be fun to hand it out and see people smile."