Buy LSD blotter which is the most common hallucinogen and is one of the most potent mood-changing chemicals. It is manufactured from lysergic acid, which is found in ergot, a fungus that grows on rye and other grains.LSD is usually found on blotter paper (paper that is perforated into small squares). The squares or tabs may be colored or have images printed on them. Liquid LSD is a clear liquid, usually in a small container, tube or flask. LSD can also be found in thin squares of gelatin.