Images floating around from what appears to be a deleted set of images from Pixiv (A Gelbooru post of one of the images claims the artist is "Pixy" but I can't find anything else on it.

I gathered what was all the images of this that I could find but with the original Pixiv source gone it's hard to say.

Image sources for spme of these(All broken)

https://www.pixiv.net/member_illust.php?mode=medium&illust_id=51238447

http://www.pixiv.net/member_illust.php?mode=medium&illust_id=23664698

http://www.pixiv.net/member_illust.php?mode=medium&illust_id=24595339

http://www.pixiv.net/member_illust.php?mode=medium&illust_id=19996114