All year long, they’ve been collecting cardboard for the big day. And on Friday, Feb. 28, they will get to showcase their hard work, when dozens of contestants climb aboard a cavalcade of homemade ...

If you’ve ever built a model rocket, you’ll know there’s not a whole lot to them. Essentially it’s a cardboard tube, a plastic nosecone, some fins, and a little clip that will keep it ...

How about a cardboard rocket ship for your cat or an epic DIY cat castle? You can even decorate the outer edges with non-toxic paint or upcycled fabric to add a personal touch to your creation.