a cosmonaut from the future T-Shirt

A "Time Traveler" graphic design can evoke the theme of adventure, mystery and science fiction. It can feature a person or object traveling through time and space, depicting the use of futuristic technology such as a time machine or a wormhole. The design could also incorporate elements such as clock faces, hourglasses, or cosmic nebula to represent the concept of time and the universe. The color palette can range from bright, vibrant hues to muted, aged tones, depending on the desired mood of the design. The overall effect should be one of a journey through time and space, with the emphasis on the wonder and excitement of travel through time.