Happy International Design Day! It"s been said the best designs are the ones you never notice, but this giant yellow polka-dotted pumpkin on Japan"s Naoshima Island is kind of hard to miss. The sculpture is the work of Yayoi Kusama, an avant-garde artist active since the 1950s and known for crafting outlandish, repeating patterns in bright colors. Polka dots and pumpkins are her most famous motifs, showing up not only on her sculptures but in her paintings, performance pieces, and films.