CAP ROCKET

The cap rocket was another popular fad in the school playgrounds around Dundee in the 60's.

Made of a plastic body & metal top, an explosive cap was held in place under the spring catch at the tip - the rocket would then be chucked up into the air and because of its heavy top meant that it always landed on it's tip, so making it go bang when it hit the ground! 

Simple, but fun for kids of primary age.
The example above is one I still have!