You can now get a vecna mask for halloween
Since Stranger Things Season 4 was wrapped up, I'd already decided I was dressing up as Vecna for Halloween but there weren't many mask/costume options available. I am pleased to say that they now appear to have flooded the market and there are several with varying price tags. Have a look at the links below to see some of the options available.
You can also get the rest of the costume to match.