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Signing UpStep 1What You'll Need:
Fresh, flat corrugated cardboard. Like, almost any cardboard box, bigger is better.
A sharp pocket knife or utility knife
A work surface you can cut on
A yardstick or some other straighedge and inch or two wide
some glue, like Elmer's (TM) or Titebond (TM).
Oh.....and at least one cat with claws.
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