TICONDEROGA The Ticonderoga Cartoon Museum at 132 Montcalm St. open will its doors for the spring-summer season on Monday, April 2, according to Stan Burdick, director. Several new exhibits await visitors, young and old, this year. One is the hand-crafted wooden cut-outs of cartoon characters made by the legendary Arto Monaco of Land of Make-Believe fame. The theme for the museum as well as for the Best Fourth in the North this summer will be Comics Are for Kids. Various exhibits will carry out that theme. The museum will be open, starting April 2, Monday, Wednesday, and Friday, 2 to 4 p.m. and other days for groups by appointment. Call 585-7015 for details.