This is a simple balloon rocket project that I have made.

When I was a teenager I made a balloon rocket with a balloon, a piece of aluminium and clear tape.

You can see my balloon rocket flying. There was an issue with the weight of the cardboard parts preventing the rocket from reaching high altitudes.

Supplies

Items: balloons, cardboard, masking tape, plastic hose/drinking straw.

Tools: scissors.

Optional items: rubber bands, threads/ropes.

Step 1: Make Additional Rockets

I made more rockets with cardboard and masking tape.