Half-Life 1 - Hidden Gaben Easter Egg

Ban Stupid People, Not Dogs. http://goo.gl/OkJ9EB
Zombies Invade Super Mario World http://goo.gl/VfLmU7
Trust Me Im A Doctor T-Shirt http://goo.gl/Fa0p0i
Solus, Mordin Solus http://goo.gl/KdYiX0
Obama T Shirt http://goo.gl/puQJm1