<iframe width="580" height="385" src="https://www.youtube.com/embed/eaqf4aHzlNE" frameborder="0" allowfullscreen></iframe> <br>Check out how to build this awesome ping pong / marshmallow laughing catapult out of simple materials! This project remix was ... <br><a href="https://www.youtube.com/watch?v=eaqf4aHzlNE">source</a>
