The Charles M. Schulz Museum’s fantastic cartoonist-in-residence program gets a shot of adrenaline this weekend, as not one, not two, but 16 cartoonists appear together in a blowout Cartoonist Sketch-a-Thon inside the hallowed halls of all things “Sparky.” For two hours, visitors will be able to observe and talk to pencil-wielding wizards of animation, including Dan Piraro (of the comic panel “Bizarro”), Paul Madonna (the San Francisco Chronicle’s “All Over Coffee”), Alexis Fajardo (“Kid Beowulf”), Debbie Huey (“Bumperboy”), Mike Gray (Nickelodeon) and more. At 3:30pm, Piraro speaks about his career with “Bizarro”, for which he recently won the Reuben Award for Outstanding Cartoonist of the Year. It’s a chance to see the funny little oval-with-crosshairs that cartoonists draw with a blue pencil before inking in a face up-close and personal on Saturday, Sept. 11, at the Schulz Museum. 2301 Hardies Lane, Santa Rosa. 1pm. Free with $5–$10 admission. 707.579.4452.