There will be two Sphinx Vases in the labrynth. Each will be composed of two parts, a head and a base. The head cannot be taken off, but will have indents on its cap to turn it only 180 degrees back and forth. There will a bar attached to the head, that when the head is turned to each 180 degree max angle it will hit a button/trigger that will be wired to the panel controlling the monkey bars.