DOD Meatbox Octave Sub Synth Bass Tone Generator Guitar Effect Pedal | Specialty Traders
AMT 550C Aroma Metro tuner Metronome Tuner and Tone Generator 3 in 1 For Wind Instruments Guitar Accessories Pedal Guitar Tuner|metronome tuner|aroma tunermetronome and tuner - AliExpress
Electro-Harmonix RTG Random Tone Generator Pedal 683274011356 | eBay