>>938609615
I found the first in #15, #44
https://desuarchive.org/trash/thread/1488832/#q1522513

The origin of the .gif are lost to time but the thumbnails are there in #50
https://desuarchive.org/trash/thread/2616925/#2622254
And #55 #58
The archive is such a time capsule, i remember it being a thing but not going that far back.

#200 https://desuarchive.org/trash/thread/8296530/#8296530