It sounds like you're looking for a T-shirt with a "Super Cool Today" theme for a boy. While I can't provide specific product recommendations, you can try searching for such T-shirts on various online platforms and retail stores. Use keywords like "Super Cool Today boy T-shirt" or explore websites that specialize in customizable or personalized clothing. Additionally, local department stores, children's clothing stores, or specialty shops might carry T-shirts with fun and positive slogans for boys. Remember to consider the boy's size and style preferences while making your selection.