MXR M86 Classic Distortion Pedal - Evolution Music
MXR Classic Overdrive and Distortion pedals are just $39.99 at Guitar Center | MusicRadar
The MXR classic overdrive pedal has a hidden switch inside that changes to the Zakk Wylde overdrive. I've seen people mod their own switch for it, but I just drilled a hole
MXR MX-142 Distortion II - Vintage Distortion - Diablo Guitars
MXR Classic Overdrive - Flip a Switch to Make It a Zakk Wylde ZW44! : 5 Steps - Instructables
MXR M104 Distortion + Pedal | Sweetwater
MXR M69 Prime Distortion Guitar Effects Pedal | Guitar Center