The O-Boy by Duncan Toys was their very first yo-yo product released following founder Donald F. Duncan's purchase of the Flores yo-yo company. The yo-yo mentioned the yo-yo patent as on the original Flores yo-yos, but curiously didn't include the Duncan name. The O-Boy is similar is design to the Flores yo-yos, suggesting that Flores blanks were used in the early production model. It features a narrow string gap, slip string (not tied to the axle) and an ink-stamped logo.