Did a quick entry for the LeapMotionJam:
Happy Little Painter (using Leap Motion tool detection for brush)

Links
Jam entry page : HappyLittlePainter by unitycoder_com for Leap Motion 3D Jam 2015 - itch.io
Instructions : GitHub - unitycoder/HappyLittlePainterLeapMotion: Leap Motion Jam Entry Instructions & Issue Tracking
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