Light Stimulation Device (LSD)™
The Light Stimulation Device (LSD)™ is in development as a free and open source research and therapeutic device built on the Arduino platform. You can download circuit diagrams, parts lists, and source code on github.
Many users of this device report psychedelic effects. Some claim that the pineal gland is stimulated which causes DMT to be released into the brain.
Similar devices like the Lucia No. 3 and the Anja Light retail for $25,000 and $6,000 respectively. People are paying $1 / minute to access such devices from therapists and other healers.
The LSD is meant to be easily built with off the shelf parts for under $100.