To my knowledge, it was never used in the golden age, but I would like to know since when does the marbled exist and which maker used it first ?
I believe blobpus was the first to used a marble in “modern” sofubi. An old dokugan in black and glow if I remember right.
I think it was even further back- the first one was the Screaming Pumpkin by Vinyl Junkies (essentially, Blobpus) in early 2007. I remember this because no one knew how he did it at the time, and it was a big deal when it came out.
couldn’t resist sorry I always thought this was a misfits tribute as it’s the logo from the Misfits Halloween ep