Gildan soft-style t-shirt, limited to 50 copies. Other sizes (XS-XXL) might be available upon inquiry, please contact firstname.lastname@example.org for details.
The symbol on the t-shirt is the same as is inscribed on the gold plaque onboard the Pioneer spacecrafts. It shows the position of our Sun (aka The Bringer of Light!) in relation to the center of the Milky Way galaxy as well as 14 different pulsars.