Instructables

Step 7: Steady progress

Picture of Steady progress
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I can't recommend this method of joining sheets of cardboard using plastic zip ties high enough. They're fantastic! My first plan had been to glue everything together with hot glue, but that would have been far weaker, messier and more time-consuming, not to mention permanent.

Zip ties are light, cheap, easy to use and removable. What's not to love?