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Mixed
Handdrawn
Free Sketch
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Black
512x512
media, network, Digg
Social media
Social - Hand Drawn Icons
Links, share, Social
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Social Aquicons
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SeaGreen
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Jolly Icons Free – 36 Hand-Drawn UI Icons
hand drawn, Connection, sharing
64x64
Education & science
Brainy Icons Free — 36 Science and Education Icons
submit, creative, Letter
Desktop apps
Sketchy Icons v 1.2
Copy, rapid, share
256x256