In a psychology class my friend is taking the teacher told them about a way to hallucinate without lsd, mescaline, or mushrooms. He claims all you do is cut a ping pong ball in half tape them over your eyes and listen to static. I'm going to be trying this with a friend of mine tomorrow and I'll let you know the results. If anyone has done it feel free to share your experience. I may also try it while on marijuana to see if the results are greater. Thanks!