Design a cheerful and minimalist illustration that features the slogan "Boss Baby!" in a vibrant style. The central focus should be a cartoonish baby character, styled with a big smile and a tiny suit, surrounded by a few iconic toys like a colorful ball and a simple block. Use a bright color palette with flat colors to create a lively yet minimalist aesthetic. The slogan "Boss Baby!" should be prominently displayed in a playful, modern font, positioned at the top of the design to draw attention. The overall look should be clean and engaging, radiating a sense of playfulness suitable for a toddler-themed project.