As UVER said, there was a T-Shirt for 25 €, a Hoodie for 55 €, a set of two wristbands for 15 €, a bag for 10 €. Also a poster and a photobook, but I forgot what the prices exactly were. Colorwise almost everything was black and white.
EDIT:
Here the backside of the T-Shirt (on the front there was just written Luna Sea, if I remember it right) and back and front of my hoodie: