OVER 100 EXCITING EXPERIMENTS - The 100+ science experiments in this kit let kids explore the wonders of hands-on chemistry experiments. They'll launch a rocket, build and erupt, create fizzy ...

Recycle those empty toilet paper rolls into a toilet paper roll rocket craft that is out of this world. Here's how to make ...

But pointing out that lightweight cardboard tubes can be tricky to ship without getting crushed, [Concrete Dog] has come up with HEXA, a clever model rocket kit that uses pre-scored cardstock instead.