Rocketry

It did not take long for Noah and Lukas to head outside to try out one of the fabulous birthday gifts - air pressurized rocket launcher. Part of the landscape bricks became weights, and a few modifications later and the first rocket was launched. Since then, the ladder has become part of the front yard landscape, and I have stopped jumping high in the sky each time I hear a large boom.
Next door neighbors kindly return armfuls of home made rockets that landed in their territory. Lukas and Noah continue to refine, remake and revise and then out and shot again - the manufacturer's suggested design long forgotten...