My fiance came up with an amazing idea for our centerpieces but find that we are going to need help on how to actually do it. We are wanting to have the tall, square vases filled with water and one of those crystal things that light up a certain color when you submerge it in water. What we are wanting to do is find a way to have bubbles going through the water all night but don't want to run extension cords to all 20-30 tables. Does anyone have any suggestions?! I'm hoping we can pull this off with some great help from the great and creative people on here.