Here is a very funny story about the pranksters messing with people from the beyond…

Engineer Unwittingly Trips Balls On LSD From The ’60s While Repairing Iconic Synth

Unsurprisingly, Ken Kesey and his Merry Pranksters outfitted their party bus with several Buchla 100 synths, and rumors that parts of the instruments were dipped in acid—thus allowing musicians to wet their finger and get a little high before playing—have circulated for decades.