Mobius hat clip

Update 24. November 2014
Added a second version with an even higher angle. Which one to use depends on the hat and wether you wear it pulled down to your face or loosely.
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I used the basic clip shape, but flipped it around and made one side a bit thicker, so it would sit tighter (might give problems using PLA, I printed in ABS).
I also used this Mobius mount: http://www.thingiverse.com/thing:340676
Just a bit of double sided tape and it will stick nicely to it