My tools for creating these spooky sounds were a Yamaha THR30II Wireless desktop amplifier, a Line 6 Helix LT effects pedal, the Line 6 Helix Native plug-in, the Steinberg roomworksSE plug-in, and/or some combination thereof. If you want to get into the spirit of Halloween, here are 10 ways you can make your electric guitar sound scary. It’s that time of the year again, when ghosts, vampires and witches abound.