Thanks for the comments guys!!
Nikolas Art Gallery made a H78 Kirk mask, which is basically a replica of the original Captain Kirk mask that Tommy Lee Wallace found for the original Myers mask. Once that mask was created, it was sent to Mike, a guy who goes by All Hallows Ghost on the Michaelmyers.net message board. Mike converted it from a Kirk mask to a Myers mask by cutting the eye holes, dying the hair and painting it.