PNG MORE
UI
Pixel
Windows 8 Pack (Metro Style)
happy
DarkSlateGray
26x26
PNG ICO ICNS MORE
Fugue Icons
happy, smiley, Emoticon
Goldenrod
24x24
Silk
Emoticon, smiley, evilgrin
Khaki
16x16
smiley, happy, Emoticon
happy, Emoticon, smiley
Emoticon, smiley, wink