Herbs and spices of a non-consumable nature!
I know of no safe depository of the ultimate powers of the society but the people themselves: and if we think them not enlightened enough to exercise their control with a wholesome discretion, the remedy is not to take it from them, but to inform them. - Thomas Jefferson

Following are a few facts about drugs and herbs that the FDA chooses to ignore and hold invalid:

There are 2556 deaths a year from the use of over-the-counter drugs compared to 5 deaths related to dietary supplements over an 8-10 year period
160,000 Americans died in 1995 from adverse reactions to doctor prescribed drugs
18 Million Americans suffered toxic side-effects from prescribed drugs
600,000 reported adverse reactions and side-effects from prescription drugs a year send people to the hospital compared to 102 cases of adverse reactions and side-effects from dietary supplements over an 8-10 year period
Doctor prescribed and over-the-counter drugs kill 2 times as many people as do car accidents

Think about this: The yearly side-effects of drugs are worse than any wars total death casualties.
So on with the non-consumables!

Banisteriopsis Caapi
Ayahuasca, yagè, hoasca(Malphigaceae) Ayahuasca is a term from Quechua, a South American Indian language and translating from huasca meaning "vine" or "liana" and aya meaning "souls" or "dead people" or "spirits" the name reads as "vine of the souls", "vine of the dead" or "vine of the spirits". Ayahuasca is one of the most culturally prevalent entheogens in the world said to "enter into almost all aspects of the life of the people who use it" being compared to an umbilical cord that links humans to their mythical past. Prepared as a concoction, usually along with at least one admixture Ayahuasca has been used traditionally in Amazonian Brazil, Colombia, Ecuador, Peru, the Orinoco of Venezuela and the Pacific Coast of Colombia/Ecuador. It has also been adopted into the practices of modern suburban shamans throughout Brazil, Colombia, Ecuador & Peru. Often known as vegetalistas they use plant teachers to derive knowledge and diagnose and cure illness. Missionary Father Tastevin observed "the Indians believed in a veritable telepathic effect of yagé......they take it in order to find out whether a sick person will become well, to look into the future, to divine, to find out how, for example, one of their own is doing who is on a journey etc. They also believe that it enables them to promptly recognize approaching dangers". Some paye's maintain that with caapi they can cause eclipses of the moon, tornadoes or control the weather. Chemical analysis has shown this liana to contain a complex of monoamine oxidase inhibiting ß-carboline alkaloids, principally harmine plus harmaline, tetrahydroharmine, harmol, harmic acid, methylester harmic amide, acetyl norharmine, harmine N-oxide, harmalinic acid and ketotetra-hydronorharmine. The Guahiko Indians of the upper Orinoco basin of Colombia & Venexuela have been observed to chew the dried stems of the ayahuasca vine and there is scant evidence of the use of Banisteriopsis snuffs and enemas. The Witoto Indians have also been seen at times to smoke the dried leaves and bark. The Ayahuasca plant and brew have such a vast and rich native mythology in South America that there can be little doubt that it's use stretches back millennia and is surely one of the most important esoterical botanicals in use anywhere.