Mr. Potato Head Day is celebrated on April 30, honoring the iconic toy that was the first to be advertised on television, specifically targeting children. The holiday commemorates the introduction of Mr. Potato Head, which features a plastic potato body and various attachable parts such as eyes, noses, and hats. Initially, the toy required users to provide a real potato, as it did not come with a plastic version. Over time, the toy has evolved, with the addition of a plastic potato and various accessories, including a car and boat trailer. Celebrations typically involve activities that engage children with the beloved toy, reflecting its impact on advertising and childhood play.