I have. Hydroponic mushrooms :y: they are fucking amazing. It makes colors a lot more vibrant. Also things are a little more 3 dimensional. I played gta while on them :p
I've done them and it was probably the best time of my life. I did them on a sunny asf day so there so many colours everywhere. But if you were to do them, make sure you havn't eaten anything in the past 6-12 hours