Step 7: Steady progress

Picture of Steady progress
Assembly 08.jpg
Assembly 09.jpg
Assembly 10.jpg
Assembly 11.jpg
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?