Spongebob design. SpongeBob SquarePants 1st Birthday Today I'm 1 is 100% authentic, officially licensed SpongeBob SquarePants merchandise! (NICK10237A) SpongeBob Squarepants is an American animated comedy television series created by Stephen Hillenburg for Nickelodeon. The series chronicles the adventures of the title character and his aquatic friends in the fictional underwater city of Bikini Bottom. Lightweight, Classic fit, Double-needle sleeve and bottom hem