These were small stamped metal cups with the smaller cup making a tight press-fit into the larger cup, which was about 1" in diameter and 3/4" deep. The smaller cup was filled with tar and had a feather imbedded in it. This was the Rocket, and the large cup was the Launcher. You placed a single-shot paper cap in the big cup, then pushed the small cup in to make contact with the cap. Then you tossed the rocket about 8-10 feet in the air over a hard surface, and when it hit, the cap would explode, sending the feathered cup high in the air. The feather would stabilize the Rocket when returning to Earth. I sure miss those little honeys! Hal
@Hal Pollner Understood. I have the equipment to make the dies. And an axle press which could sub for a punch press, slow, but how many parts do we need? I think more interesting were the "torpedos" seen when I was a kid. Usually marble-shaped, maybe 3/4 inch diameter, containing a few heavy particles and some explosive material, like silver fulminate. They exploded when thrown against a wall, or up in the air to fall on pavement. Illegal today. Frank
It may be more fun to make them, but you can also buy them on Amazon using this link: https://www.amazon.com/Unbranded-Grenade-Plastic-Stocking-Stuffer/dp/B06Y53WZLG