Sad Head:
http://textures.minecraft.net/texture/1735b3f8bda1bec0c27201fdfa0da87bc1903e4ca8aa01a026c7a37576f9bba7
http://textures.minecraft.net/texture/3b1eede6993ba64b4576b105d894aeeb1494c1de3b0e209921970a3a88a3ce11
http://textures.minecraft.net/texture/7add822bc7481a4292d1e5831ecac0ec9b4b8c3e92686dbbc28319d64f6b4384
http://textures.minecraft.net/texture/d22f991a7bcd8032472d858a0c7a572932394893d112db3717772084236de048
http://textures.minecraft.net/texture/5b05cf76767a28e1888c4967bcb5f798ab9d6512cfd020067c625f2d38093b2d
http://textures.minecraft.net/texture/1735b3f8bda1bec0c27201fdfa0da87bc1903e4ca8aa01a026c7a37576f9bba7

CS-Head:
http://textures.minecraft.net/texture/4feaa732d497059721d3c5c836bf1a6cde6a0da96885d4b2581b6ee93c682481
http://textures.minecraft.net/texture/a81e0b812eb18834e55d53341c01357aa319e3d259f3c82aaf8da2bec84ad9b8
http://textures.minecraft.net/texture/705d0aea7a6d479e55ddc6a156aa5931bf7e61aa364f363f18d1bc97bec68169
http://textures.minecraft.net/texture/6d509ce605822e422a7d67ddf60e334e967738f8e7e3e7ca30fcd1f3848e6b87
http://textures.minecraft.net/texture/3579a4eabb216ab957be4f8504449bd4f85b24bace4bbb096b78dda7cdcb67d8
http://textures.minecraft.net/texture/1c6b8842dd3193ffc7b15c65ab8693c56c371a40823cbdabd93e64543fb040c8
http://textures.minecraft.net/texture/5a9d06bb3ba480885179eda56a474b92ca0c49de2df5a24abb66c64d8e5740f9
http://textures.minecraft.net/texture/199568761bbfda207fd50d2715b76df2c292d8ffacb02884ea39d29c209181b6