Ninja Shuriken
thingiverse
Played a bit around with the original design. Made it a lot thinner and the blades "sharper". Because it is so thin now, the used magnet does not fit it in any more (I'll just glue it instead). Changed the OpenSCAD script to toggle on/off the magnet (default is off now). For a change my version now has 5 blades.
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