<iframe width="580" height="385" src="https://www.youtube.com/embed/6keq2eKnKqo" frameborder="0" allowfullscreen></iframe> <br>One of Jay Mankita's demonstration tables from his Chain Reactions & Creative Contraptions workshops, in which kids and ... <br><a href="https://www.youtube.com/watch?v=6keq2eKnKqo">source</a>
