Stick an Estes motor in that thing and send it ... [Concrete Dog] has come up with HEXA, a clever model rocket kit that uses pre-scored cardstock instead. The immediate advantage is that this ...

How small? Small enough to fit in a backpack: Estes is a storied company dating back to the 1950s, known for its model rockets for hobbyists. CPR reports that the tiny firm, which has estimated ...