I also designed my own cardboard Transformers that would actually transform!

Heh. I used to make paper Transformers that transformed. They were at least as fun as the real toys, and a lot more portable. I may even still have them somewhere in a box.

Later I graduated to making Lego Transformers that transformed. When I bequeathed my childhood Lego bin to my older son, it still had some Lego Transformers in it. I had to explain to him what Transformers were, because this was before the Michael Bay reboot.