PNG MORE
Family & home
Pixel
Shrunk Pidgin Smilies
good, Like, thumbs
SandyBrown
24x24
PNG ICO ICNS MORE
UI
Fugue Icons
thumb, good, Up
Chocolate
Desktop apps
3D
Free Applications Icons
ok, success, Accept
Black
i like, Like, Hand
LightGreen
Check, good, tick
LimeGreen
Hand, thumbs, Like
Check, Accept, green
Photography & graphic design
Dark Glass
Emoticon, smiley, good
Khaki
128x128
Nuvola
yes, Check, good
ForestGreen
48x48
Crystal Clear
Face, yellow, happy
Gold
ok, good, yes