Instructables has instructions for building a gift that no self respecting Joe the Plumber would want to be without. Their “coin slot detector” (translation: butt crack detector) senses when your vertical smile is making an appearance and vibrates to make you aware of it.
this hip pack is creating intelligence for an intimate space on your body to allow it to tell you when it’s put into a public sphere. this not only gives you the decision to act on that, but it also raises awareness for a part of your body you’re not using to thinking about and sensing with. for low-rise pants wearers worldwide, the coin slot detector adds another accessory to the trend.
For step by step instructions and parts list visit Instructables.