I think this can be the "source" of bunnysuit thing now. Hope this meme wont end soon it's great.
And in the same place where that link was posted, that link was debunked as being the source by linking post #3035559 which appeared earlier.
The best I could find on the origin is that it being a mere twitter fad, possibly due to a recent Ooyodo fan illustration book by Yuuji_(and). As for artists, the earliest images stemming back a couple weeks came from ojipon and yuuji_(and), although both have made multiple Bunny Ooyodo images from long before this became a meme.
Even the artists participating in the fad seem to be clueless as to the origin. So wondering about the origin has almost become a meme in of itself as shown by post #3042346
