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Mixed
Glyph
FatiCons
thumb
Black
512x512
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Social media
Handdrawn
Jolly Icons Free – 36 Hand-Drawn UI Icons
Agree, Up, hand drawn
64x64
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Network & communications
Pixel
16x16 Free Application Icons
mark, thumbs down, Dislike
Red
16x16
vote, thumbs down, mark
Tomato
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Business & finance
Outline
iOS 7 icons
Down, thumb
Up, thumb
UI
Windows 8 metro style
Finger, thumb, And
DarkSlateGray
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Windows 8 icons
And, Finger, thumb
26x26
Smooth
Pretty Office 8
Gainsboro
256x256
Family & home
IconBeast Lite
30x30
Desktop apps
Farm-fresh
thumbs up, Up, vote
SandyBrown
32x32
thumb, Down
Black ToolBar Icons
thumbs up, Like, Up
40x40
Wireframe mono icons
thumb, Hand, thumbs up
48x48
Shrunk Pidgin Smilies
Bad, Up, Hand
24x24
good, Like, thumbs
Web Design Creatives
thumb, vote, ok
128x128
Fugue Icons
thumb, Bad
SaddleBrown
thumb, good, Up
Chocolate
3D
Free Applications Icons
Hand, vote, unlike
i like, Like, Hand
LightGreen
thumbs down, thumbs, Hand
LightSalmon
Hand, thumbs, Like
LimeGreen