My mother is throwing a family 4th of July Party at our house, and im in charge of entertainment and im having a concert consisting of Cousins, and I have to build a stage, and i was wondering how i can turn tables similar to this http://i21.geccdn.net/site/images/n-picgroup/75993.jpg Into a stage? do i need to put wood in the middle? or what? PLEASE HELP! Im looking for the cheapest and easiest, but stable way! thanks!