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Agriculture
head, cow
Peru
256x256
cow, head
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Mobile apps
Flat
User Pictures
unknown, user, Avatar
Linen
512x512
unknown, Anonym, head
person, user, unknown
Anonym, unknown, head
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Sports & awards
theSquid.ink 40
sport, hat, helmet
CornflowerBlue
Signs & symbols
Smooth
Social Flat Buttons
creative, profile, Avatar
DarkSlateGray
UI
Outline
Feather
head
Black
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Glyph
Windows 8 metro style
head, thor
26x26
Spiderman, head
spawn, head
head, vulcan
head, Borg
ironman, head
head, Andorian
head, klingon
Flash, head
head, Human
torch, Human, head
head, venom
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Education & science
Handdrawn
Brainy Icons Free — 36 Science and Education Icons
science, Atom, nuclear
64x64
Halloween
Photorealistic
Desktop Halloween
Game, creative, silence