>>80989
>>80992
>>81101

>Where oh where did these come from?

These are poorly redrawn versions of work by an artist going by the pseudonym "teQteQ" aka "TekuTeku" aka "tQtQ" aka "てくてく".

teQteQ posted animated versions of these at one point. I'm not sure if the originals are still available. He's changed pseudonyms and his art has gone offline and online a few times.

You might be able to find them within the compiled listings on Pixiv under his Pixiv ID 2532867 under which he posted his guro work. teQteQ's non-guro work is posted under Pixiv ID 1858104.