had sceletium which was a nice plant smoke. enhanced weed heaps. twice as stoned.
salvia was ok. didnt go into space but i was 2 ft tall and lost all my limbs boomeranging all over the place.clouds went evil and tiles appeared everywhere. close but no inner-space.
blue lotus.mixed with weed and had excellent visuals with eyes shut.
heimia silaicifolia-like smoking leaves, is ok, something different.
catnip- was a bit stoned
i got a doghair caught in a cone once. that was pretty vile hehe.

oh and a tiny scrap of opium once. tasted really really nice. was too stoned to notice. and i never smoked heroin when i was into it.

oh yeah and snow cones with speed on top. waste of time. compared to othr methods.