There have been many clones of vintage Big Muffs made throughout the years and many pedals that were inspired by the Big Muff four stage circuit. Some are basically exact copies of particular Big Muff circuit and others feature unique modifications and improvements. Here are reviews of a few of my favorites. You won't find reviews here of any clones that are not well made, or that do not sound good. If I do not like a pedal, I simply don't review it. There are many good clones that I have not reviewed yet, so just becasue it is not here does not mean it is not any good.
PETE CORNISH G-2....•....PETE CORNISH P-1....•....PETE CORNISH P-2
SKREDDY P-19 ...•..... SKREDDY PINK FLESH.....•......SKREDDY PIG MINE
SKULLYTONE FX RUSSIAN SPI......•.... TOPTONE DG-2
STOMP UNDER FOOT CWM - Cival War Muff..........STOMP UNDER FOOT VRH - Violet Ram's Head
NOTE - I have listed the gear and settings I use in most cases, for reference, but note that the tones may not exactly match your rig, depending on which amp you use, your guitar, pickups, and fingers :)