On the front cover of the birthday card, imagine a zany laboratory scene inspired by the whimsical worlds of Schulz and Watterson. In the center, a mad scientist with wild, Einstein-like hair and oversized round glasses is frantically juggling an array of test tubes filled with bubbling, colorful concoctions—think neon green, vibrant pink, and electric blue. He is wearing a classic white lab coat, but it's stained with splashes of paint in primary colors, giving him an eccentric flair. Surrounding him is a chaotic yet charming assortment of birthday decorations—balloons shaped like molecules, a confetti cannon disguised as a beaker, and a birthday cake that looks suspiciously like an erupting volcano.

On the lab's cluttered workbench, a robotic arm (reminiscent of Tezuka's mechanical marvels) is attempting to frost a cupcake, but the frosting tube has burst, covering the nearby shelf of encyclopedias in a sugary mess. To the right, a calendar on the wall displays today’s date circled in bright red, with the words "Experiment: Birthday Surprise!" written in bold letters.

In the foreground, a curious mouse wearing a tiny lab coat peers through a magnifying glass at a blueprint labeled “Ultimate Birthday Surprise Device," which is revealed to be a half-finished, Rube Goldberg-esque contraption snaking around the room, involving pulleys, levers, and a slingshot aimed at the piñata hanging from the ceiling. Scattered across the floor are birthday cards shaped like test tubes, each with a unique design hinting at an ongoing experiment in birthday celebrations. The scene captures a frenetic blend of science and birthday joy, with nods to the inventive chaos of Larson and Eisner, creating a narrative where the quest for the perfect birthday party has turned into an extraordinary scientific experiment.

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