By modding a geeky toy and connecting it to a vintage synthesizer, an indie rocker/hacker has created a trippy instrument that lets him make music with his mind.

Robert Schneider, singer/guitarist for The Apples in Stereo, made his Teletron by cracking open a Mattel Mindflex, a mind-control game that employs an EEG sensor to let players move a small ball through a maze using nothing but brain waves.

“It’s kind of punk-rock,” Schneider told Wired.com in a phone