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Signing UpStep 1: Get your Duct tape out!
-Duct tape (holding the Army's equipment together since 1942)
-Memory cards
Optional:
-rail card/gift card/fake credit card...
Good for structure and customization
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PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.
If you're intent on using the metro card, why not cut and fold it into a box, into which the memory cards fit?
Good Instructable!