Moon Long Sleeve
After being humanity's most loyal companion since the beginning of our existence one would think we would have honored the moon with a better name than "Moon." What makes Saturn and Jupiter so special that they get Titan and Europa? Well, we see ya, Moon. Hang this one next to your Hot Topic NASA tees.
Warning: This one has sleeves that travel from the shoulder all the way down to the wrist displaying the Moon's many faces for you to admire.