The pin version of this was Kickstarter exclusive and is not available online, but instead you can get a vinyl sticker version!
 
Details of the sticker:
☆ 3in W x 3in H
☆ Durable
☆ UV laminate  -- protects the sticker from scratching, rain and sunlight.
☆ Waterproof and fade-resistant
☆ Easy to peel

If you have any other questions, please feel free to contact me.