Black Sabbath "Warning" vs Runaways "Johny Guitar"

OT - how to play Sonic Youth covers without buying 12 guitars and 'tuning' them all differently: just use an ordinary guitar, play the 2nd and 3rd strings simultaneously with the your finger bending the 3rd up so it's almost playing the same note as the 2nd, then strum both strings wildly holding hand in this position while running it up the neck at the end of every bar